Instructions for Reset the 3 Digit Secure TSA Lock--20 inch. The original combination is 0-0-0. To set your own combination, please follow these steps: 1) With the lock in the 0-0-0 position. 2) Press down the reset button [A] with a pen or other tool until you hear a "click"sound. 3) Set your own combination by turning the dials [B]. For example, 8-8-8. 4) Push the button [C] in the direction of the arrow until you hear the "click"sound again, confirming that you have set your personal combination. Instructions for Reset the 3 Digit Secure TSA Lock--24 & 28 inch. 1.The initial password of lock is 0-0-0. 2.Press the reset hole with the tip of the pen. 3.Set the new 3-digit code while pressing. 4.Now you can open the lock with the new password.