Place the ball pin from distal to mesial into the head gear tube. Only in particular cases I advise the use from mesial to distal, because sometimes there is an interference among lower and upper bands, and the Ritto device.
Activation is achieved by sliding the lock along the lower arch in the distal direction and then fixing it against the Ritto Appliance.
The lock slides along the lower arch against the Ritto Appliance. For this procedure use the mini wrench.