To adjust the paddle, open the latch, pull the handle to the desired length, then close the latch. The alignment rail ensures that the handle is properly in line with the blade.
If it is not fastened tightly enough, open the latch and tighten the metal screw.
The paddle should be adjusted to around 15-20 cm more than your height:
E.g.: a person of 1.90 m adjusts to approximately 2.10 m
E.g.: for a person 1.50 m tall, adjust the paddle to 1.70 m