Challenge: I want a training aid to help my students get a feel for taking a smaller backswing on their service return.
Solution: The one-size-fits-all Arm Pocket Developer is a great aid for many situations. It corrects oversize backswings on service returns and groundstrokes, while forcing a unit turn for more efficient strokes. Also cuts out big backswings on volleys.
"I have too big a backswing, so my pro had me use his Arm Pocket Developer. The design is ingenious. It has helped me so much."
Nancy Ewing, tennis student