Specification :

Using instruction:
1.Put expander( No.21) into the left wheel key hole until the bottom part;
2.Put picker( No.22) into expander( No.21) to test the expander direction. Press picker( No.22) to test the forefront and aftermost 2-3 holes and see whether there is any elasticity in billiards. If not, it means the direction is wrong and please change the direction;
3.Turn the expander( No.21) anticlockwise slightly;
4.Put the front part of picker( No.22) into expander( No.21) at 1-6 holes and press;
5.The transponder will turn 90 degree and that means it is unlocked.
Attention:

In case it is difficult to unlock at clockwise direction and easy to unlock anticlockwise, users should follow the easy direction and then unlock by reversal.