1.   I have found it to be a great help if the main rotor blades are covered with a glossy white material.

2.   His fan runs on a lightweight electric motor and has plastic blades covered with caging.

3.   It is spring-loaded so it snaps back to cover the blade after the cut is made.

4.   He can play almost anywhere, covers every blade of grass from the kick-off to the final whistle, and can crack in a goal or two.