Combination padlock：Zinc alloy case, strong and durable. Size approx. 4.3cm x 7.3cm / 1.6 x 2.8 (width x height). What is the password and how is it changed：The password comes in the lock box and consists of three digits and the password cannot be changed because it is fixed. The combination appears on a sticker on the back of this lock. Precautions：The code of this is fixed and immutable. If you forget your password, you will no longer be able to use it. It works by spinning the spinner to the combined numbers provided. How to use：Turn the wheel clockwise first and leave it in the first number. Then turn counter-clockwise past the number 0 and continue to the second key number. Then turn clockwise to the third digit. The padlock opens. Precautions：The code of this is fixed and immutable. If you forget your password, you will no longer be able to use it. It works by spinning the spinner to the combined numbers provided.