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

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!

Purchased this 5 years ago for my then freshman and he said it was great to have especially when he needed to storage his wallet, phone, etc while playing sports or whatever. Purchased again for my now freshman mainly to store cash & other items in the dorm room. Easy to use and made well. Worth every penny

Bought for beach vacation and worked well securing to beach chairs. Resetting the default passcode was a little tricky, but can be accomplished

Works well. I like being able to lock my stuff up to my chair (used it on a cruise) and not having to worry about it being stolen.

Very sturdy. Bought this to use at the beach. FYI, the thickness will hold three iPhones.

Excellent little safe for cash, passport, keys, credit cards etc.Lock it under seat tuck under in rental car or lock into safe or bed frame in hotel / Airbnb, etc. criminals will just move on to an easier / quicker target. It will take some time to get into this. My kids wanted one for their dorm roomsUsed mine around the world - Colombia, Costa Rica, Thailand, Vietnam, etc. just gives you another layer of protection.If criminal has bolt cutters though they are getting this safe. It’s not going to save your from that.

Why did you pick this product vs others?:Just received the unit. surprised at the lack of volume inside. barely holds a US passport, doubt it would hold 4 for my family. Or that it would hold foreign passports that are larger than USA. Weighs 1.5 lbs -- heavier than i expected for a carry-on piece -- i try to travel light. Programming my combo was exceedingly difficult, needs 3 or 4 hands. I entered one digit at a time then proved it -- no recourse if you dont pay attention and set a different set of digits. bought it for the price point, probably keeping it.

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.