






🔐 Secure your essentials, wherever life takes you.
The Master Lock 5900D Portable Small Lock Box offers a compact, water-resistant safe with a customizable 4-digit combination lock. Designed for travel and personal security, it features shock-absorbing foam and a unique earbud/charging cable port, allowing you to keep valuables protected while staying connected. Its sleek gunmetal grey finish and portable size make it ideal for professionals who demand both security and convenience on the move.






| ASIN | B005K6JQXQ |
| Alarm | anti-theft |
| Best Sellers Rank | 45,229 in DIY & Tools ( See Top 100 in DIY & Tools ) 43 in Cabinet Safes |
| Brand | Master Lock |
| Capacity | 0.08 Cubic Feet |
| Chamber Depth | 12.95 Centimetres |
| Chamber Height | 1.25 Inches |
| Chamber Width | 8.13 Inches |
| Colour | Gunmetal Grey |
| Control Type | Touchpad Control |
| Country of Origin | China |
| Customer Reviews | 4.3 out of 5 stars 18,230 Reviews |
| Global Trade Identification Number | 00071649147784 |
| Included Components | 1 |
| Item Dimensions D x W x H | 13D x 23.9W x 5.6H centimetres |
| Item Type Name | Set Your Own Combination Portable Safe |
| Item Weight | 0.71 Kilograms |
| Item height | 2.25 inches |
| Lock Type | Electronic Combination Lock |
| Manufacturer | Master Lock |
| Material | Multi |
| Model Number | 5900D |
| Mounting Type | Portable/Movable |
| Special Features | Water resistant |
| UPC | 071649147784 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |
A**N
Amazing product
Great quality, good weight, easy to use, keeps your stuff safe, value for money, great product and excellent quality, strong little safe,
A**R
Happy customer.
This small and not drastically heavy box lets me have a little extra security. I don't trust hotel safes and prefer to use this Lock Box. The dials are a little stiff, but the box is well made and sturdy. Very small amount of valuables like credit cards, money and passport, perhaps some jewellery or a watch will fit in nicely. I don't always use the wire to attach it to some post, just a safe wallet (that does not even look like a wallet) with secure lock, so not to tempt an incidental thief.
R**H
Put your stuff in carefully and avoid extreme heat
Was really good at first locked easy and felt sturdy however if I didn't have items placed exactly right it did struggle to open after a few days im not sure if this was the orientation of items or something in the mechanism swelling with the heat, big enough for a phone with case a small earphone case and a key card for room maybe a small amount of paper cash just be careful how it is orientated, it is about two - three times the size of a psp and a similar shape. Very eady to set up. Good enough for a holiday myself but would hesitate in buying the same model for someone else without giving them a talk about my experience.
H**Y
Great portable safe
Good quality portable safe. Perfect for travels. Not too heavy so can be packed into a suitcase. Great value for money. Good functionality.
M**K
Nice size and sturdy
Travel a lot and stay at Airbnbs so extra security of this case gives peace of mind. Money, cards and watch all fit . Like the cable you can tie around something to stop someone walking off with it too easily. Looks really good and feels sturdy. Easy to set up and use. Well worth buying.
A**N
Don’t waste your money.
Absolute rubbish it will not protect anything you put in it the hinge is made of thin plastic first time I opened it up I heard cracking, thin metal over a plastic clamshell. I wouldn’t trust this with anything of value inside it out in the real world
D**A
Good safety wallet
That’s a good and safe wallet either you go to the beach or want a safe place of your belongings . Fast delivery and quick shipping
G**N
Be aware it's plastic, not metal
I was looking for secure box made from metal and the product description for this item said it was made from metal in two separate places on the page. It was very disappointing to discover when it arrived that it's made from plastic. I don't understand how they could say the material is metal when it's clearly not. The hinge is also plastic and there's no guard for it which would allow a screwdriver to get in there and pry it open. I sent it back to Amazon.
Trustpilot
2 months ago
1 month ago