Search  for anything...

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

  • Based on 16,569 reviews
Condition: New
Checking for product changes
$22.54 Why this price?
Save $1.45 was $23.99

Buy Now, Pay Later


As low as $5 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product
This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Nov 23
Order within 10 hours and 46 minutes
Available payment plans shown during checkout

Color: Black


Features

  • Small safe is ideal for use as a travel safe or personal safe for protection and security from theft
  • Secure small safe to a fixed object with cable; Portable safe is best used to protect smart phones, passports, cash, and credit cards
  • Set your own four-digit combination portable safe; Ear bud/charging cable access port to conveniently listen to music or charge devices while locked
  • Constructed with a shock absorbing foam, small lock box is designed to be water-resistant
  • Exterior dimensions: 2-1/4 inch H x 9-17/32 inch W x 4-59/64 D; Interior dimensions: 1-1/4 inch H x 8-1/8 inch W x 3-1/2 inch D
  • Lock Up and Lock Down. Lock up valuables with the cable wrapped tightly to the safe or wrapped securely around a fixed object. Cable doubles as a carrying handle

Description

The Master Lock 5900D Set Your Own Combination Portable Personal Safe features durable construction made to withstand abuse and is water resistant. The safe measures 2-1/5in (57mm) H x 9-2/5in (23.9cm) W x 5-1/10in (13.1cm) D; and is ideal for recreation, campus, office, travel or leisure use. The safe includes a cable to wrap securely around a fixed object or use as a carrying handle. The Limited Lifetime Warranty provides peace of mind from a brand you know and can trust.

Brand: Master Lock


Product Dimensions: 5.5"D x 9.53"W x 2.25"H


Lock Type: Combination


Color: Black


Capacity: 0.08 Cubic Feet


Material: Multi


Special Feature: Water resistant


Mounting Type: Floor Mount


Control Type: Touchpad Control


Included Components: 1


Brand: ‎Master Lock


Product Dimensions: ‎5.5"D x 9.53"W x 2.25"H


Lock Type: ‎Combination


Color: ‎Black


Capacity: ‎0.08 Cubic Feet


Material: ‎Multi


Special Feature: ‎Water resistant


Mounting Type: ‎Floor Mount


Control Type: ‎Touchpad Control


Included Components: ‎1


Item Weight: ‎0.71 Kilograms


Alarm: ‎Audible


Water Resistance Level: ‎Water Resistant


Chamber Depth: ‎3.5 Inches


Chamber Height: ‎1 Inches


Chamber Width: ‎9.5 inches


UPC: ‎071649147784


Global Trade Identification Number: ‎84


Manufacturer: ‎Master Lock


Part Number: ‎5900D


Item Weight: ‎1.56 pounds


Country of Origin: ‎China


Item model number: ‎5900D


Is Discontinued By Manufacturer: ‎No


Size: ‎9-17/32 in. Wide


Style: ‎Portable Travel Safe


Finish: ‎gunmetal


Pattern: ‎Lock Box


Item Package Quantity: ‎1


Special Features: ‎Water resistant


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎One year limited warranty


Date First Available: August 31, 2011


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Perfect Travel Companion – Master Lock Portable Lock Box Exceeds Expectations!
Color: Black
I recently purchased the Master Lock Portable Small Lock Box (Model: 5900D) in Gunmetal Grey, and it has quickly become my go-to travel accessory. This portable safe is incredibly functional, allowing me to set my own combination lock for added security. I used this lock box during my recent trip to Mexico at a resort, and it was a game-changer! I felt confident leaving my valuables safely tucked away while I enjoyed my time by the pool. The sturdy design and compact size made it easy to hang, and I loved that I could quickly access my items when needed. I've also used it stateside during the summer at various pools, and it continues to impress. The combination lock is easy to set and reset, ensuring that my belongings are always secure. I highly recommend the Master Lock Portable Lock Box to anyone looking for a reliable way to keep their valuables safe while traveling or enjoying outdoor activities. ... show more
Reviewed in the United States on July 31, 2024 by Chelsea Ward

  • Small and secure
Color: Black
I like how small it is and it is far more secure than a simple lock box
Reviewed in the United States on November 7, 2024 by David

  • Trusty Compact Traveling Safe
Color: Pink
The media could not be loaded. It’s Super great and easy to travel with plus I love the color and I love that you can hook it around some thing if you wish.
Reviewed in the United States on September 10, 2024 by Brandon Curry Smith

  • Gift to Dela 🥰
Color: Black
I gifted this to my friend and he loved it. He told me it was something he had on his wish list and travels with it often. It is sturdy, great quality and has a lock pad.
Reviewed in the United States on September 21, 2024 by NovacainCarter

  • Convenient and safe at beach
Color: Black
I loved that it handle hooked to you seat. The quailty was great and the coding setting made openin it with ease. It found the weight was alittle heavy but the versatility and size was Omazing and it performance was A-1for safety of your things onthe beaxh or pool
Reviewed in the United States on August 28, 2024 by Dr. Noreen

  • Perfect for college
Color: Black
With my student going off to college, we needed something to store his social security card and cash. This is the perfect size and it comes with a cord to attach to something. My student keeps it attached to the bed rail against the wall. Small enough to be inconspicuous but big enough for what is needed. ... show more
Reviewed in the United States on October 5, 2024 by Kathy K

  • OK Price, But Very Small & Made of Plastic
Color: Black
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. ... show more
Reviewed in the United States on August 28, 2012 by donbodadonbo

  • Portable Safe!
Color: Black
This portable locking case is like having a portable safe to bring with you when you'd like to secure valuables when away or traveling. Its dimensions are 9.5" x 5" x 2.5" and it weighs a bit over 1lb, 5oz so it won't take up much room in your carry on. The shell is hard plastic and the interior is lined with foam. Interior dimensions are 8.25" x 3.5". The lock mechanism intrudes into the space and eats up some of the available room. Regardless, I was able to secure 5 passports and 2 sets of keys plus cash in this locking box aboard a boat. Setting your own combination is simple - push in a slide to the right, set the lock combination of your choice, then release the slide. The cable, used to loop around immovable objects to secure the box, is 21" long. It easily fit around a bed frame, under a mattress. This lock box provides a sense of security in that anyone would (a) have to find the box and (b) have to demolish the box or the object the box is locked to, or attempt to cut the heavy steel locking cable in order to get to the contents. That would not be an easy, or quiet task, and thus discourages sticky fingers from picking up your items and walking away with them. ... show more
Reviewed in the United States on April 24, 2024 by Kookaburra III

Can't find a product?

Find it on Amazon first, then paste the link below.