Oncourt Offcourt Radar Coach Tennis Training Aids
Oncourt Offcourt Radar Coach Tennis Training Aids, Oncourt Offcourt Radar Coach Tennis Training Aids : See how hard you're serving with the Oncourt Offcourt Radar Coach! This device provides radar feedback to help you improve one of the most important skills in tennis. Important Warning: Never aim directly at the Radar Coach without having a net or other protection guarding the unit.