Gate LocksSPECIFICATIONS-High quality and security;Lock professional manufacturer; 3 Digit Combination Lock;Metal material, Anti-corrosion, Durable.Lock Type: Combination Cabinet Cam Lock Door LockKey Type: Keyless Combination Password LockMaterial: Zinc AlloyColor: Silver/Black/Red Bronze/Green Bronze/Bright GoldKey Combination: 3 Group Code (0-9)Lock Panel Size(Length*Width):38mm*38mmLock Core Size: 20mm/30mmSize 20mmSuit for door thickness: 1-13mmSize 30mmSuit for door thickness: 1-25mmHow to change password1.Make sure the lock is open, code 0-0-0;2.Find a hole on the lock turntable;3.Find a pointed object;4.Insert it into the hole;5.Reset the code.(The lock below have a hole to change the password, in the open position with a stick top of the hole, don't let go,Then change the password after let go, change the password. After locking the password will be a good.) Gate Locks Color Black 20mm Brand Name DFLPBHAV Unit Count 1.0 Count Item Weight 50 Grams Manufacturer DFLPBHAV Model Number DFLPBHAV Item Dimensions 0.39 x 0.39 x 0.39 inches