TopSpin Whistle Fairway leather grip by Balmforth

Fairway leather grip by Balmforth of England

Maximize your tennis with ReString Zero

A simple adidas essential trusted by players at every level

Built to last and made sustainably from recycled polyester material

Sync provides optimal pocketing allowing you to dictate with pin-point control and precision

TopSpin Whistle Fairway leather grip by BalmforthThe TopSpin Whistle: Instant Feedback for a Heavier Ball Stop guessing if youre getting enough "brush" on the ball. The Spin Whistle is a simple, racket mounted tool that gives you a clear audio cue the moment you hit the correct swing path. How it works: If you hear the whistle, youve nailed the acceleration. If its silent, youre not hitting with topspin. Its that simple. By turning your technique into sound, you can fix your swing in real time.