Description
Product Overview
The Master Lock portable safe, model 5900D, is a durable security solution designed for personal use. Constructed from high-quality plastic in a sleek gunmetal grey finish, it features a mechanical code lock that allows you to set your own four-digit combination. With exterior dimensions of 9.8 x 5.5 x 2.6 inches and interior dimensions of 8.125 x 3.5 x 1.25 inches, this safe provides ample space for smartphones, passports, cash, and credit cards. It weighs 1.42 kilograms and includes shock-absorbing foam for added protection, along with a water-resistant design to safeguard contents in various environments. The unit count is typically 2, making it a versatile choice for multiple locations.

Usage
This portable safe is ideal for travelers, students, and professionals seeking to protect valuables from theft. Use it in hotels, dormitories, offices, or during outdoor activities to secure items like electronics and important documents. The cable attachment allows you to fasten it to fixed objects such as furniture or poles, enhancing security in temporary settings. Its compact size makes it easy to carry in bags, ensuring your belongings remain safe on the go.
Why Choose Us
Master Lock is a trusted brand known for reliability and innovation in security products. This portable safe stands out with its user-friendly combination lock, eliminating the need for keys and reducing the risk of loss. The water-resistant construction and shock-absorbing foam provide extra durability, while the ear bud/charging cable access port allows convenient device use while locked. Backed by positive customer reviews and a high best-seller rank, it offers proven performance and peace of mind.
Key Features
- Set your own four-digit combination for personalized security without keys
- Water-resistant design with shock-absorbing foam to protect contents from moisture and impacts
- Cable attachment for securing the safe to fixed objects, preventing theft in various settings
- Ear bud/charging cable access port to listen to music or charge devices while locked
- Compact and portable size, ideal for travel and storing smartphones, passports, and cash
FAQ
How do I set the combination on this portable safe?
To set your combination, follow the instructions included in the packaging. Typically, you use a tool to reset the lock to your preferred four-digit code, ensuring it’s easy to remember and change as needed for security.
Is the safe truly water-resistant?
Yes, the safe is designed to be water-resistant, protecting contents from splashes and light rain. However, it is not fully waterproof, so avoid submerging it in water to maintain integrity.
What items can fit inside the safe?
The interior dimensions accommodate smartphones, passports, credit cards, cash, and small electronics. It’s spacious enough for essentials but compact for portability.
Can I use the safe without attaching the cable?
Yes, the safe can be used freestanding, but attaching the cable to a fixed object enhances security by preventing someone from easily carrying it away.
How durable is the plastic construction?
The plastic is high-quality and reinforced with shock-absorbing foam, making it resistant to minor impacts and wear, suitable for regular travel and use.




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