4 Digits, Anti-Theft Security: 4-digit passwords provide 10,000 password combinations, which improves security and better protects your belongings. You can set any number combination of your choice as a password, but remember your password. There is a password window on the side to better protect the password wheel High Quality Materials & Sturdy Construction: The padlock is made of high quality zinc alloy. The padlock shackle is made of stainless steel, which is rust and corrosion resistant. It is the most durable and secure padlock Easy To Carry & Easy To Use: Padlocks are extremely compact. A single lock weight is 147g, size is 80mm x 43mm x 20mm. You can use them anywhere and without having to bring a key Wide Application: Designed for indoor and outdoor use, the lock is suitable for most light duty applications such as locker rooms, cabinets, suitcases, wheels and general storage. No need to carry the key, you you can use Diyife padlocks at any time