OnCourt OffCourt Toss Doctor - Tennis Ball Toss Trainer/Comes in Set of 2 CHALLENGE: Having trouble controlling your toss and tossing too high? Our Toss Doctor makes bad tosses a thing of the past. SOLUTION: Helps all levels of players get a controlled and consistent toss. It even helps players who toss too high on windy days. So quick and easy, you won't believe it! GREAT FOR COACHES: This is a great tool for coaches and teachers looking to improve their players consistently when tossing their serve. PROFESSIONALLY MADE: All our products are designed by Tennis pros with years of experience and expertise. ONCOURT OFFCOURT: We are the leading creative resource for youth tennis, training aids, court equipment and ball machines. Over 10 million players have improved using our products in over 100 countries.