Master Lock Portable Small Lock Box, Set Your Own Combination Lock Portable Safe, Personal Travel Safe, 5900D, Gunmetal Grey

It worked well on vacation. I holds your valuables and it seems sturdy. I’m sure if it’s stolen, it could certainly be broken into. If you check bags, I recommend putting it in there and not on a carry on. It was the first time in over a decade that my bag was set aside for inspection because of how this safe looks in their x-ray scanner.

The Master Lock Portable Small Lock Box has been an incredibly useful addition to our household. It’s compact, sturdy, and perfect for securing important items like cash, IDs, keys, and small documents. I really appreciate the “set your own combination” feature - super easy to personalize and even easier to use. Its portable size makes it great for travel, dorm rooms, or just keeping valuables tucked away at home. It’s lightweight but still feels durable and reliable. I love knowing that important items are protected without needing a big, bulky safe. The safe is easy to open and I find it very useful when traveling. Overall, this little lock box offers great security, convenience, and peace of mind. Highly recommend for students, travelers, or anyone who wants a simple and effective personal safe!

I like this box a lot. I feel a lot safer travelling with it. At the airport, it's nice to have my jewelry and passport, extra credit cards, etc. locked up when the lines are long (still carry cash in palms tho). At TSA, bags get stopped or stuck in the machine, and you don't know whose what is being gone through for a few minutes, it's nice to know they couldn't take advantage (not that I suspect that but it has been documented that there are some bad apples out there!). I've never been asked to open the box, so it must be fine to see through. And I like using it during my stays where there might not be a safe. The only thing is that if someone really wanted to steal the whole box, it probably wouldn't be that hard. The wire chain doesn't appear to be super robust.

I’ve used the Master lock portable small lock box locally and on 2 trips, Vegas and Cancun, and I can confidently say it’s one of the smartest purchases I’ve made for protecting my valuables. Whether I’m on the go, at the gym, at the beach, or just need a secure place to stash items in my car, this lock box delivers outstanding performance, durability, and peace of mind. The customizable 4-digit combination lock is easy to set and eliminates the hassle of carrying or potentially losing a key. The locking mechanism feels solid and responsive, giving me confidence that once it’s locked, it’s truly secure. It’s strong enough to deter opportunistic theft and gives me assurance when leaving items unattended in public settings. Don’t be fooled by the term "small" — the interior space is very well-designed. I can comfortably fit my phone, passport, small wallet, keys, and even some jewelry with room to spare. The foam lining inside is a thoughtful touch that prevents my items from shifting around or getting scratched. It’s also a good size for securing medication if needed. This lock box truly shines in its versatility: Beach trips: I loop the cable around a beach chair or inside my beach bag. I can swim without constantly worrying about my phone or car keys being stolen. Hotel stays: Not every hotel has an in-room safe, and this box is a great portable alternative. Car security: I’ve used it to store cash or spare keys in my car when I don’t want to carry them into the gym or on a hike. Airbnb or shared living spaces: It adds an extra layer of security for valuables when you're staying somewhere unfamiliar. The included cable loop is extremely handy — it allows you to secure the box to a fixed object like a bed frame, chair, railing, or inside your trunk. It’s coated in plastic to avoid scratches but still strong enough to resist cutting or tampering. The outer shell is made of impact-resistant ABS plastic, and the internal foam padding protects delicate contents from damage. It’s also water-resistant, which is a big plus for beach or outdoor use. It’s not waterproof, so I wouldn’t submerge it, but it can definitely handle splashes and light rain without issue. This is an excellent all-around lock box for anyone who values security, portability, and peace of mind. Whether you’re a traveler, student, athlete, parent, or just someone who wants an extra layer of security in unpredictable environments, this product is a fantastic choice. Pros: Customizable combo lock – no key needed Foam-padded interior to protect contents Water- and impact-resistant exterior Compact but holds a surprising amount Strong cable for tethering to fixed objects Affordable and well-built Cons: Not fireproof or waterproof (but not designed to be) Cable can be a little stiff at first use Would I buy it again? Absolutely. In fact, I’ve already ordered a second one as a gift!

Love this!! 5 stars (dunno why one won't light up) Easy to use and holds small valuables/money. It would have to be smashed with something very heavy to break into - I don't think it could be easily broken into, so it is definitely sturdy, strong and safe. Easily fits into my night table drawer. Small enough to pack into a suitcase for travel. Highly recommend!

I am not going to lie. I expected so much more from a big brand name like master lock. This thing feels cheap as hell. The cheap foam interior isn’t even glued down or anything. The rubber cover for the dials slips out all the time and the cable doesn’t even fit on it snug. The door only being able to open to 58 degrees is a joke. I bought another off here for about $25 and the difference is night and day. I give it one star just for showing up in one piece the dials are also ridiculously hard to turn for what they are

Fantastic product. Works great - space for passport, car keys and $’s.

MasterLock calls this a "Portable Safe" in the ad title, but that's stretching it a bit. It's more like a portable locked box than a safe, by any stretch of the imagination. I like its looks & parts of its design, but I don't like the fact that it's made of plastic (polycarbonate?). Although the shell is hard, it's not likely to withstand a hammer, drill, or screwdriver the way that metal would. The box has a rubber-like covering over the four dial combination lock, to "increase weather resistance & conceal the dials from view", but after opening & closing this cover twice, it no longer closes firmly, leaving one side of it partially open (the top side). So much for "increasing weather resistance & conceal the dials from view". All four of the dials on the lock are difficult to roll to the combination & off the combination; they resist movement too much, & are made of plastic without a grip, or much of a detent. Other such locks are rubberized or textured for a better grip, or have deeper detents for a place to put a fingernail. I expected it to be small, but it's actual interior dimensions are smaller than I thought they would be. For example, to give you an idea of the size, you can fit only two boxes of standard cigarettes inside in any formation, & that's pretty small. It might be useful for jewelry, money, an important folded up piece of paper, or other small mementoes, but due to the ease of breaking it open & walking away with this, I wouldn't trust it for anything of real value. MasterLock's packaging leaves something to be desired. It comes in a neat looking, strudy box, with a fold open lid, like a book cover. When you open the lid, one side of this box is visible (the side with the metal design on it). After that, as far as I could tell, you have to rip the box open, not very elegant. A simple opening would be more appropriate. Then, under the lock box, the one-sheet, folded manual is taped to the inside of the box. To remove the tape from the manual (so I could unfold it), the entire front page of the manual was ripped off by the tape. A thoughtless design on the part of MasterLock. For the price, this is not a bad deal, if you have a use for it. It would seem to make a good choice for teaching a child about combination locks, security, & protecting their valuables. For adult usage, I have a hard time figuring out what it could effectively be used for, considering the very small interior & the plastic construction. If it were found in a car, attached underneath a car seat, a thief might do more damage to the car (trying to dislodge the box) than it would be worth to you, in terms of protecting what is inside the box. I also bought the The Club LB200 Personal Vault Security Lock Box , which I've found to cost only a few dollars more, but it is of much better construction & is a larger size, without being too large. The Club LB200 is a much better buy than is this MasterLock box.

Works as expected. Loved having mine on a trip. & can use for other purposes.

Funktioniert sehr gut. Schloss hakt ein bisschen aber ansonsten top. Ich hoffe es muss nie seine Brandfestigkeit beweisen.

justo lo que pone el producto

Take this every time I go on holiday - will deter the opportunist thief - well made

Fulfills its function. Might feel a bit cheap and plasticky but that’s exactly what it was.