Description:

【Function】When completing the correct topspin stroke, it will make a soft whistle sound. It will enhance the correct technique while reinforcing good muscle memory.

【Tennis Ball Training Tool】Great way to improve your skills, reaction ability, hand-eye coordination.

【High Quality】 Made of high quality materials, lightweight and high performance, the tennis topspin whistle is durable and can be used for a long time.

【Multi-Function Tennis Topspin Whistle】Suitable for beginners and young players, both men and women.

【Perfect Gift】Great gift for tennis lovers, coaches or anyone who wants to improve their hitting skills.

Size Chart:

11.2cmx14.4cm/4.41inchx5.67inch

Package Includes:

1 Piece Whistle

Note:

Please allow slightly errors due to manual measurement and different monitors.