Endorsed by Professionals
"The WinSock is awesome; It permits you to groove your strokes in a most natural way. You learn from your racquet, which is what I have told even accomplished tennis pros."
- Oscar Wegner
"The feel you get from the WinSock is incredible. After using it I feel like my whole game is flowing in a most natural and efficient way."
- Mark Carruthers
"The Winsock is very useful in helping students to execute a full finish on groundstrokes, to let the racket turn them in recovery to the center, and to develop upper body strength. It should be in every player's tennis bag."
- Lucile Bosche
"I tried the WinSock and I really like it. I think it is especially useful to develop the capacity of acceleration in the motion to strike in groudstrokes and the ability to control the racket in volleys. "
- Massimiliano Grancini
"Really like the ProTrainer WinSock. It's a great warm-up tool. I would recommend it to anyone."
- Charles J.
"I'm happy to report that I'm really enjoying the WinSock. I've used it in warm-up before my last three matches and it has really helped to loosen my arm. I feel like I'm starting faster. It doesn't take 3 or 4 games to get flowing like it used to for me."
- Mark B.