






Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.
🔐 Travel Smart, Lock Tight, Live Fearless!
The Master Lock 5900DPNKHC Portable Personal Travel Safe offers a compact, water-resistant solution to secure small valuables like passports, electronics, and cash. Featuring a resettable 4-digit combination lock, shock-absorbing foam interior, and a cable that locks to fixed objects or acts as a handle, it’s designed for millennial professionals who demand convenience, durability, and peace of mind on the go.























| ASIN | B0052OU5JK |
| Additional Features | Durable,Portable |
| Alarm | Lock |
| Best Sellers Rank | #28,854 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #52 in Cabinet Safes |
| Brand | Master Lock |
| Brand Name | Master Lock |
| Capacity | 1.73 liters |
| Chamber Depth | 3.5 inches |
| Chamber Height | 1.25 inches |
| Chamber Width | 9.5 inches |
| Color | Pink |
| Control Type | Touchpad Control |
| Customer Reviews | 4.3 out of 5 stars 18,047 Reviews |
| Global Trade Identification Number | 00071649165757 |
| Included Components | 1 |
| Item Dimensions D x W x H | 5.3"D x 9.4"W x 2.5"H |
| Item Type Name | Set Your Own Combination Portable Safe |
| Item Weight | 14.4 ounces |
| Lock Type | Combination |
| Manufacturer | Master Lock |
| Manufacturer Part Number | 5900DPNK |
| Manufacturer Warranty Description | Limited Warranty |
| Material | Plastic |
| Material Type | Plastic |
| Model Number | 5900DPNK |
| Mounting Type | Portable/Movable |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product Dimensions | 5.3"D x 9.4"W x 2.5"H |
| UPC | 071649165757 |
| Water Resistance Level | Water Resistant |
S**L
love it!!
I own two of these because I loved my first one so much that I needed one for my mom’s house too. They are super easy to use and figure out while setting it up, and the perfect size!!! super easy to bring around or keep hidden somewhere in a room. These things don’t budge if you don’t put in the exact code!! Great quality, my only wish is it would be nice if the lid opened a little more than it does because it doesn’t open all the way up, it stops before even reaching a 90° angle.
D**N
Perfect Little Safe for Peace of Mind!
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!
A**R
Adds a level of security
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.
C**E
Handy Safe for travel cash
I think it is TSA compliant, have not taken it anywhere but home. It is small. maybe enough for a cellphone and some cash. I have been able to fit 400 dollars in one very easily. The attached cable is a think bike lock wire sort of affair. a pair of bolt cutters and it's game over. But for routine security, perfect. You wrap it around a sturdy base like a radiator or bathroom pipe and all is well. Changing the 4 digit code is fairly easy with just a screw driver. Keep in mind though nit only opens to like a 45 degree angle so do not try to force it all the way back. It's hard plastic, not metals and you will break it. The code reels are little rotary thumb disc with the number visible but not at low light. If you have chubby thumbs use your index fingers to spin it to the right digit. Perfect for hotel stays or for when your Uncle comes to visit. You know the one, seen only during funerals and holidays with large food and alcohol events. It is slim, maybe a cell phone or passport wide but plenty roomy for cash, foreign and domestic. over all not bad a the price is right. Plus you can change the combination as it suits you
J**S
Compact, secure, and travel-friendly – A must-have for peace of mind
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!
A**5
Terrible lock mechanism
Won’t be buying again or recommending to others. It’s the right size for small valuables or money while on vacation but once you set the combination to open, to scramble the numbers once finished is almost impossible. They get stuck on the combination and nearly impossible to reset to 0000. I’ve had this less than a week and the paint on my numbers are already wearing. By 6 months I don’t think I’ll even be able to see the numbers.
S**�
Excellent Product for The Price, Kept My Stuff Safe & Dry
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.
K**S
Great product, but numbers can stick
It’s absolutely perfect except the freaking numbers are so difficult to rotate
M**L
Sehr gut
Funktioniert sehr gut. Schloss hakt ein bisschen aber ansonsten top. Ich hoffe es muss nie seine Brandfestigkeit beweisen.
A**N
muy bueno
justo lo que pone el producto
M**H
Strong but lightweight
Take this every time I go on holiday - will deter the opportunist thief - well made
J**.
Heavy but Solid and Useful. Great Value for Dollars Spent
We used this on our cruise ...worked wonderfully! It's easy to use and set (and reset) the combo (after watching YouTube video). It fit our phones and money and cards ...anything we needed to keep secure while at the beach or on the ship. It is a bit heavy! this is true. But for the price, compared to other such gadgets (available to me in Canada, that I could find, lol), and its quality of use, I won't complain! I look forward to using it again on the next trip! :)
F**O
Recomendo
Ótimo para guardar pertences pessoais, evitando incômodos!
Trustpilot
2 months ago
2 weeks ago