Lock, Keyless Combination padlock - Initial Passwords 0000 - With You6688 - Color May Vary High anti-theft performance Keyless password padlocks, easy to use Material: zinc alloy; specification: 65*60.5*32MM; the diameter of lock rod: 7MM The method of changing the password:The 0000 are on the scale line, and pull out the lock lever; After pulling out the metal lid on the right and taking out the four wheels, you can see a red line; After the four new passwords are on the red scale line one by one, cover with the metal cover, and the change done; To disrupt the digital wheels can be locked, and turn the digital wheels to what you set can be unlocked; Please keep the modified passwords in mind, otherwise unable to open.