1.Protecting your scooter, bicycle, or other valuables against theft. 2.The protective coating helps prevent scratching and the flexible braided steel cable for strong cut resistance. 3.The 4-digit combination allows 10,000 possibilities. Making this lock nearly Impossible to crack. Set your own combination in a strong and complicated mechanism. How to set your own password: 1.Open the lock by entering the number combination on the marked number pad, and pull the locking bolt out. (The lock combination is preset to "0000") 2.To select a new number combination, turn the reset ring 90 degrees, then select the number combination you want. 3.Turn the reset ring back after you have selected the combination. 4.Now the lock can be opened with the new number combination. 5. The lock combination can be changed again at any time by repeating the above steps. Please keep your new combination recorded in a safe place in case you forget it.