You only need to scroll the number to the correct password to open the 3 digit combination lock, no need to use the key, avoiding the bother of losing the key. Easy to Operate: you will not worry about forgetting the key when using this number lock; 3 Digit password lock is simple and convenient to operate; The factory original password is 0-0-0, press the password set key to redefine your own digital password; Guard your belongings and privacy.