Brand | Master Lock |
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Special Feature | TSA Approved |
Lock Type | Combination Lock |
Item dimensions L x W x H | 5.2 x 3.2 x 0.4 inches |
Material | Vinyl, Alloy Steel, Metal |
Style | 1-Pack |
Color | Black |
Number of Pieces | 16 |
Finish Type | Powder Coated |
Included Components | 1 luggage lock |
Controller Type | Hand Control |
Shape | Rectangular |
Item Weight | 0.04 Pounds |
Control Method | Touch |
UPC | 071649152733 |
Model Name | Set Your Own Combination TSA Accepted Luggage Lock |
Global Trade Identification Number | 00071649152733 |
Manufacturer | Master Lock |
Part Number | 4688DBLK |
Item Weight | 0.64 ounces |
Product Dimensions | 5.2 x 3.2 x 0.4 inches |
Country of Origin | China |
Item model number | 4688D |
Is Discontinued By Manufacturer | Yes |
Size | 1 Pack |
Finish | Powder Coated |
Pattern | Lock |
Item Package Quantity | 1 |
Special Features | TSA Approved |
Batteries Included? | No |
Batteries Required? | No |
Warranty Description | Limited Warranty |

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Master Lock Black Set Your Own Combination TSA Approved Luggage Lock, Travel Lock for Backpacks, Suitcases, or Zippers, 4688D
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Purchase options and add-ons
Brand | Master Lock |
Special Feature | TSA Approved |
Lock Type | Combination Lock |
Item dimensions L x W x H | 5.2 x 3.2 x 0.4 inches |
Material | Vinyl, Alloy Steel, Metal |
About this item
- TSA approved luggage lock enables screeners with the ability to inspect and relock luggage without damaging lock
- Set your own three-digit combination luggage lock; TSA lock is best used as a luggage lock or backpack lock
- Travel lock is constructed with a metal body for durability and a vinyl covered cable for resistance to abuse from baggage handling equipment
- 1-3/16 inch (30 millimeter) wide lock body; 1/8 inch (3 millimeter) diameter shackle with 1-1/2 inch (38 millimeter) length, 5/8 inch (16 millimeter) width
- TSA lock is best used as a luggage lock, backpack lock, tent lock, tool chest lock, or as a storage case lock
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Master Lock 4688D Set Your Own Combination TSA Approved LockMaster Lock
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Combination Locks
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Product information
Technical Details
Additional Information
ASIN | B003P0WM12 |
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Customer Reviews |
4.3 out of 5 stars |
Best Sellers Rank | #9,166 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #7 in Luggage Locks |
Date First Available | June 16, 2010 |
Warranty & Support
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Master Lock Black Set Your Own Combination TSA Approved Luggage Lock, Travel Lock for Backpacks, Suitcases, or Zippers, 4688D
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Product Description
The Master Lock 4688D Set Your Own Combination TSA Approved Luggage Lock features a 1-3/16in (30mm) wide metal body for durability. The 1/8in (3mm) diameter shackle is 1-1/2in (38mm) long and made of vinyl covered flexible braided steel, offering resistance to abuse from baggage handling equipment. Transportation Security Administration (TSA) screeners can open, inspect and relock bags locked with a TSA-Accepted lock. Lock your checked baggage with the lock TSA screeners won’t cut! The Limited Lifetime provides peace of mind from a brand you know and can trust.
Top Brand: Master Lock
Compare with similar items
This Item Master Lock Black Set Your Own Combination TSA Approved Luggage Lock, Travel Lock for Backpacks, Suitcases, or Zippers, 4688D | Recommendations | |||||
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Price | $12.39$12.39 | -16% $19.99$19.99 List: $23.90 | -30% $13.95$13.95 List: $19.99 | $44.29$44.29 | -8% $20.70$20.70 Typical: $22.48 | $24.95$24.95 |
Delivery | Get it as soon as Monday, May 12 | Get it as soon as Monday, May 12 | Get it as soon as Monday, May 12 | Get it May 19 - Jun 2 | Get it as soon as Monday, May 12 | Get it as soon as Monday, May 12 |
Customer Ratings | ||||||
Sold By | Amazon.com | BikepakUSA | SURE LOCK | Limicounts | Amazon.com | Forge Life LLC |
lock type | Combination Lock | Combination Lock | numeral-lock | Combination Lock | Combination Lock | Combination Lock |
number of items | 1 | 1 | 1 | — | 3 | — |
material | Metal, Alloy Steel, Vinyl | — | Stainless Steel, Metal | Zinc | Metal | Zinc |
shape | Rectangular | Rectangular | Rectangular | Rectangular | — | — |
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find the luggage lock works well for luggage and appreciate its compact size that fits perfectly on gym lockers and backpacks. The lock is easy to set and change the combination, and customers consider it good value for money. However, the lock quality and durability receive mixed feedback - while some say it holds up well, others find it not secure and flimsy. Moreover, customers report difficulty opening the lock, taking forever to figure it out, and find the numbers hard to read, particularly in low light conditions.
AI-generated from the text of customer reviews
Customers find that the lock works well, particularly for luggage, with one customer noting it performs just as well as more expensive models.
"Great Purchase. Easy to program. No issues with TSA" Read more
"...The lock is good quality and performs well. I hate to give something that is cheap and well-made a mediocre review...." Read more
"These worked well on my Asia trip and held up well. Hoping to get a few trips from them, but right now....they good." Read more
"...what the combination is that I reset it to - since the combination I wanted doesn't work and the initial factory 000 combination doesn't work either...." Read more
Customers find the luggage lock easy to use, particularly appreciating how simple it is to set and change the combination.
"Easy to use lock! Was able to easily customize my own combo. Felt sturdy and was a good value for my bike box." Read more
"Great Purchase. Easy to program. No issues with TSA" Read more
"...The thing that is impressive is the ease of usage. The 3-digit code is easy to set up and recall while the quick unlatching system is ideal for..." Read more
"...Pushing the cable to the left before pulling out is not intuitive. I received red because I didn't realize shipments are randomly selected...." Read more
Customers appreciate the lock's compact size, noting it's perfect for gym lockers and backpacks without being in the way.
"...The design is brilliant – it’s light weight and strong!..." Read more
"...Standard color and fits well on my medicine box. Easy to program combination. I would repurchase this in the future." Read more
"...It fit perfectly on my gym locker and backpack, providing that extra peace of mind while I focused on my workout or while out and about...." Read more
"...the number lock instead of a physical key so it’s one less thing to keep track of in transit...." Read more
Customers have mixed opinions about the lock's functionality, with some finding it good for travel and easy to use, while others report that it doesn't work properly and is not secure.
"Easy to use lock! Was able to easily customize my own combo. Felt sturdy and was a good value for my bike box." Read more
"...This lock really fits the bill. It goes through the zippers for the bag to lock it, and fits perfectly in the bag's side pocket when I don't need it...." Read more
"...If you lose pressure on the button because of the awkward nature of holding the lock, holding the pen/button and spinning the dials, and then you..." Read more
"...Apart from all of that, the locks seem to work...." Read more
Customers have mixed opinions about the durability of the lock, with some finding it sturdy and noting it holds up well, while others report it being flimsy and not as secure as expected.
"Easy to use lock! Was able to easily customize my own combo. Felt sturdy and was a good value for my bike box." Read more
"...Its useful, it’s also long lasting, moreover, it gives my children security without any stress...." Read more
"...Over time, I noticed that it's not built for long-term, heavy-duty use...." Read more
"...Good value for the money and so far has lasted awhile. Standard color and fits well on my medicine box. Easy to program combination...." Read more
Customers have mixed opinions about the lock's value for money, with some finding it a good value while others say it's not worth the purchase and describe it as the cheapest TSA lock available.
"...Felt sturdy and was a good value for my bike box." Read more
"...The down side to this is an expensive secure case with a good lock practically shouts 'steal me'...." Read more
"Great Purchase. Easy to program. No issues with TSA" Read more
"...Good value for the money and so far has lasted awhile. Standard color and fits well on my medicine box. Easy to program combination...." Read more
Customers find the lock difficult to operate, reporting that it refuses to open and takes a long time to figure out how to use it.
"...Someone clearly did in my case because the plastic was cot open. Lock seems ok so I’ll keep it but suggest you buy from another vendor." Read more
"...different locks because these would not reset, and then they would not even close. Don't bother unless you have three hands." Read more
"I recently purchased bikes with MIK trunk bags. The bags come easily on and off with a special MIK key, but I really didn't want to be taking the..." Read more
"Though it's hard to open and close and tends to work better when trying different angles, it's very sturdy and secure...." Read more
Customers find the numbers on the lock difficult to read, particularly in low light conditions.
"I have similar comments to other reviewers. The numbers are hard to see. Pushing the cable to the left before pulling out is not intuitive...." Read more
"Hard to read the combination digits." Read more
"...But only 3 stars from me because the black numbers in chrome is *super* hard to read with any kind of eyesight issues or darker light." Read more
"...Dials are chromed and oddly difficult to read but it’s not bad enough to send back. Someone clearly did in my case because the plastic was cot open...." Read more
Reviews with images

A simple lock for your backpacks and smaller items
Top reviews from the United States
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- Reviewed in the United States on April 9, 2025Color: BlueSize: 1 PackVerified PurchaseEasy to use lock! Was able to easily customize my own combo. Felt sturdy and was a good value for my bike box.
- Reviewed in the United States on June 24, 2024Color: Assorted ColorsSize: 1 PackVerified PurchaseI recently purchased bikes with MIK trunk bags. The bags come easily on and off with a special MIK key, but I really didn't want to be taking the bag on and off everywhere I stopped. I don't live in huge city where theft is a huge issue with bicycles, so I figured a simple luggage lock would suffice. This lock really fits the bill. It goes through the zippers for the bag to lock it, and fits perfectly in the bag's side pocket when I don't need it. So far I have not had anything stolen while I'm at work or in restaurants/bars on a ride. The only negative I would say about this lock is that numbers don't click into place very well, so sometimes you may not have the number selected that you think because it's just slightly off.
- Reviewed in the United States on April 17, 2025Color: Assorted ColorsSize: 2 PackVerified PurchaseI have similar comments to other reviewers. The numbers are hard to see. Pushing the cable to the left before pulling out is not intuitive. I received red because I didn't realize shipments are randomly selected. Apart from all of that, the locks seem to work. However, I don't think I would reorder these as there are much simpler locks, some under the same brand.
- Reviewed in the United States on March 24, 2025Color: Assorted ColorsSize: 1 PackVerified PurchaseGreat Purchase. Easy to program. No issues with TSA
- Reviewed in the United States on January 3, 2025Color: Assorted ColorsSize: 1 PackVerified PurchaseI purchased this lock in order to help my children secure their backpacks at school and it has made a world of difference! The design is brilliant – it’s light weight and strong! Being able to lock the zippers together is useful, and they offer several color choices to make it feel personal.
The thing that is impressive is the ease of usage. The 3-digit code is easy to set up and recall while the quick unlatching system is ideal for children as they might have to reach for the bags numerous times throughout the day. Its useful, it’s also long lasting, moreover, it gives my children security without any stress. Strongly suggest this lock for students or any other people who wants to secure their belongings in an easy manner!
- Reviewed in the United States on March 21, 2025Color: SilverSize: 1 PackVerified PurchaseI had the exact same problem as the person who wrote the following review, so I am reposting it here. STRONGLY RECOMMEND AGAINST THIS PRODUCT unless you want to go through the hassle of returning it.
“Someone posted earlier that this lock is extremely difficult to reset. I agree whole-heartedly. This lock requires 3 hands to reset it - 1 to hold this small, slippery lock, 1 to turn the tiny dials located very close to one another, 1 to hold in the reset button while you are setting your new combination. The reset button is on the bottom of the lock and is recessed, necessitating you to use some sort of tool like a pen, to keep the button pressed in. If you lose pressure on the button because of the awkward nature of holding the lock, holding the pen/button and spinning the dials, and then you lock the lock, you may not have reset your combination to what you were aiming for. When the lock is open, you have to have the lock set to the correct combination before you can reset it. All of this happened to me and now I can't lock the lock or reset it because I'm unsure of what the combination is that I reset it to - since the combination I wanted doesn't work and the initial factory 000 combination doesn't work either. Supposedly, if I want to cycle through every combination there could be it would eventually unlock, but to me it's not worth the $10+ I spent on this to spend any more time with this thing.
Other Master Locks have a rigid hasp that you turn to 90 degrees which makes it much easier to reset the lock. Definitely don't recommend this lock at all for the difficulty in resetting it.”
- Reviewed in the United States on December 15, 2024Color: Assorted ColorsSize: 1 PackVerified PurchaseVery functional combination lock is easy to open and close. Overall, great to use. I wouldn't say it's meant for heavy security, it's kinda thin, but it functions well as a lock. Good value for the money and so far has lasted awhile. Standard color and fits well on my medicine box. Easy to program combination. I would repurchase this in the future.
- Reviewed in the United States on October 30, 2023Color: Assorted ColorsSize: 1 PackVerified PurchaseThis travel lock was a good value and it functions as designed. But I have to warn you that it works a bit different than other travel locks, and requires some getting used to. Had I known this lock was so strangely designed, I would have paid the extra $3 and gone for another brand.
For one thing, the order of the three numbers in the combination are vertical (top to bottom) rather than horizontal. You have to get used to holding the lock vertically and entering in the combination this way. It can also be difficult to remember to line the numbers up with the tiny guide dots that are between the numbers. In a dark room, you may have trouble entering in your combination if you can't see where to line up the numbers.
Finally, unlike every other travel lock -- and even unlike any other padlock in general -- the lock unlocks horizontally rather than vertically. Instead of pulling the locking cable out of the lock, you push it to the side. This is so completely counter-intuitive I still struggle with it. And combined with not always knowing where to line up the numbers, you may think you are entering in the wrong combination if you can't see what you are doing and can't see how to pull the cable to the side to unlock it.
The lock is good quality and performs well. I hate to give something that is cheap and well-made a mediocre review. But it's just too awkward to use. Spend a couple extra bucks and get a normal travel lock.
Top reviews from other countries
- LolaReviewed in Australia on January 31, 2024
5.0 out of 5 stars Good small lock!
Color: BlackSize: 1 PackVerified PurchaseIt is in by no means a lock against someone who really wants to get through it, but a fantastic lock to deter the opportunist thief!
Came with really clear instructions on how to make the combination your own and I had no issues with it 😊
It has weight to it, it’s quite heavy for it’s size.
LolaGood small lock!
Reviewed in Australia on January 31, 2024
Came with really clear instructions on how to make the combination your own and I had no issues with it 😊
It has weight to it, it’s quite heavy for it’s size.
Images in this review
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E.TrocadoReviewed in Brazil on August 26, 2024
1.0 out of 5 stars Método de troca do segredo
Color: RedSize: 1 PackVerified PurchaseO cadeado veio com o movimento dos números do segredo impreciso o que causou erro na troca do segredo e consequentemente a inutilização do cadeado.
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خالد الغامديReviewed in Saudi Arabia on December 20, 2024
5.0 out of 5 stars مناسب
Color: RedSize: 1 PackVerified Purchaseممتاز
- RaymondReviewed in the United Kingdom on August 7, 2017
5.0 out of 5 stars A QUALITY LOCK
Color: Assorted ColorsSize: 1 PackVerified PurchaseBrilliant little padlock. Nice looking easy to set up and strong. Just used on a trip to Mexico after reading review about how good this lock is. It lived up to the review and we have decided to purchase two more .
- Miss Y McMillanReviewed in the United Kingdom on March 9, 2025
5.0 out of 5 stars The only lock you are going to need!
Color: BlackSize: 1 PackVerified PurchasePerfect lock for small bags and large cases. Don’t buy the flimsy ones, get these as they are robust and will last.
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Product Summary: Master Lock Black Set Your Own Combination TSA Approved Luggage Lock, Travel Lock for Backpacks, Suitcases, or Zippers, 4688D
From Master Lock
About this Item
- TSA approved luggage lock enables screeners with the ability to inspect and relock luggage without damaging lock
- Set your own three-digit combination luggage lock; TSA lock is best used as a luggage lock or backpack lock
- Travel lock is constructed with a metal body for durability and a vinyl covered cable for resistance to abuse from baggage handling equipment
- 1-3/16 inch (30 millimeter) wide lock body; 1/8 inch (3 millimeter) diameter shackle with 1-1/2 inch (38 millimeter) length, 5/8 inch (16 millimeter) width
- TSA lock is best used as a luggage lock, backpack lock, tent lock, tool chest lock, or as a storage case lock
Product Description
Options Available
Color
- Assorted Colors
- Black
- Blue
- Red
- Silver
Size
- 1 Pack
- 2 Pack
- 3 Pack
- 4 Pack
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