【𝐖𝐚𝐭𝐞𝐫𝐩𝐫𝐨𝐨𝐟 & 𝐑𝐨𝐛𝐮𝐬𝐭 𝐌𝐚𝐭𝐞𝐫𝐢𝐚𝐥】The portable security case is made of high-strength ABS plastic shell, lightweight and practical. It is drop-proof and shock-resistant, extremely robust and impact-resistant, providing you with lasting protection. The inside of the safe has a high-density EVA lining to protect all valuables placed inside. The safe is excellent for travel.【𝐂𝐨𝐦𝐩𝐚𝐜𝐭 & 𝐏𝐨𝐫𝐭𝐚𝐛𝐥𝐞 𝐒𝐚𝐟𝐞】It can securely store your mobile phone, USB cable, power supply, passport, cash, credit cards, watches, jewelry and more. Wire hook length: 50 cm; Wire diameter: 6.5 mm.【𝐇𝐢𝐠𝐡 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 𝐒𝐚𝐟𝐞】This box consists of a 4-digit password combination with up to 10000 password combinations, easy to use and change passwords. The default combination is 0-0-0-0, which can be easily reset to your own number. Please note that once the password has been reset, it is best to take a photo to record it, otherwise there is no way to open it again.【𝐄𝐚𝐬𝐲 𝐓𝐨 𝐂𝐚𝐫𝐫𝐲 & 𝐏𝐫𝐚𝐜𝐭𝐢𝐜𝐚𝐥】Our mini safe comes with a removable sturdy wire chain. This means you can both be in the pool or on the beach at the same time without having to worry about items being left unattended. It is also lockable with a code for privacy, which may have caused a vacuum inside the box during transport, making it difficult to open. We can try to open the box by tapping hard on the casing to let air into the vacuum, then the box can be opened.