4 Pack Tennis Training Balls With Rope Tennis Training Balls Self-Practice Training Tool Tennis Ball Training Equipment

Tie the ball to the base by rubber band, no need to pick up the balls frequently^
Training tennis with string, very lightweight, easy to carry^
The trainer is a great teaching tool for beginners and intermediate tennis players.^
Including 4 Pcs training tennis with string^
Multipurpose trainer for practicing all your tennis skills