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

This Master Lock Safe is SO COOL. I purchased this after some little punk stole my cell phone at a park. I set my phone down on a table for maybe five minutes while I was doing something, and a kid walked right off with it. People seen him but did not say anything until after because they thought it was his phone. Living in a bigger city now I decided that I should invest in this product since my boyfriend and I go to public parks often.The Master Lock Safe arrived on time and in a sturdy box. It is bigger than I expected, and I love that! I can fit all my necessities in there. The product details say it is water resistant too, and that was put to the test the first day we got it! My boyfriend and I went to the skate park and locked it to a bench. While it was locked up it started sprinkling and the safe got wet but my phone and everything inside was perfectly dry. There is even a tee-tiny hole on each side that you can run your headphones through if you want. The combination was easy to set and the buttons on it work fabulously. The inside of the safe has a foam like material that helps keep your stuff from banging around. I especially like how it has a lot of room to put your belongings in, but at the same time once its closed up its slender enough I can fit it into most of my purses and it fits in my boyfriends backpack perfectly. It is very lightweight for its size too; and it seems like for being plastic on some parts it would still hold up fairly well. Someone would have to really work on it to bust it open I think. The lock looks impressive but I'm a little worried about the hinges on the other side. I wouldn't use this for an at home safe, because I need something a bit tougher and bigger than this for my home. But it is perfect for setting your stuff down and locking it up at a playground, water park, fair, party, untrustworthy roommate situation, work, etc. Overall this is an excellent portable safe, and I would recommend to others.

So far so good. Oughtnit gor my daughter for college. No complaints yet. Great concept for keeping valuable safe in her dorm.

Works well and keeps stuff safe on campus or on vacation. Wish it was slightly easier to use in the sense that the dials are extremely hard to turn but I guess that also makes it harder to break into. Overall- very good.

This is a great portable safe. On vacation alone and I have no worries when I’m on a tour or have to leave my valuables unattended because they are secure in this box. I must admit I had a little difficulty setting my code because the switch kept popping back but once it was set it works as described.

Love that I choose the code. Easy to use and open. Perfect size for husband wallet, my card holder, a phone, and car fob. Love that it has a cable to wrap around luggage, stroller, scooter or chair. Waterproof. Ease of mind that all was secure.

My Jack Russell Terrier puppy broke into a “safe” pill box and at minimum chewed and spit out several painkillers. Only God knows what prevented her from being killed because it takes almost zero methadone and hydromorphon to kill. This is the best insurance to save a child or a pet. If you have any prescription or over the counter medication this is the best and least expensive way to prevent accidental poisoning and very possible death.

Bought this for a vacation to hold items at the beach/pool. Larger than I expected. Rubber seal over combination did not seal well after only a couple of uses. Holds a good amount of stuff. Fairly easy to use.

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 neededFoam-padded interior to protect contentsWater- and impact-resistant exteriorCompact but holds a surprising amountStrong cable for tethering to fixed objectsAffordable and well-builtCons:Not fireproof or waterproof (but not designed to be)Cable can be a little stiff at first useWould I buy it again? Absolutely. In fact, I’ve already ordered a second one as a gift!