This locker lock has 4-digit password setting, 4-digit offers 10,000 combinations for added security compared with 3-digit, keeping your locker away from being theft and damage. Zinc alloy material, solid and durable, rust resistance, and wear resistance, firm and corrosion resistant, can ensure long time using. Features -Color:As shown. -Material: Zinc alloy.-Size: About8.00X5.50X5.00cm/ 3.14X2.16X1.97in.-Length of lock lever: 20mm/0.78". -Number combination design, can keep your belongings safe with a simple 4-digit code.- With a 4-digit password, you can freely set the number you like, easy to change the password.- No longer worry about losing or forgetting keys. Excellent for drawer cabinet, office cabinet, school lockers, etc.- Sturdier and safer, it is cut resistant, anti rust and weatherproof, serving you for a long time.- Zinc alloy construction for increased strength and security. Widely used for storage unit, storage locker, garage, and more.Set up password:1. Dial to password 0000 and turn the knob arrow to aligned the unlock symbol.2. Insert the code changer, turn 90 to the right and hit the horizontal code change button.3. After setting the password, turn the code changer 90 to the left to reset, and then pull out the knob and turn the arrow to the lock symbol to complete the password setting.Retrieve password:1. Insert the key and turn it 90 to the right until it is straight.2. Straighten the key, turn the 4-digit password in turn, and the correct password will be retrieved if the key cannot be turned.3. Rotate the key 90 to the left and pull out the key to retrieve the password. Packing list: 1 x lock1 x key1 x code changer1 pack x parts