2Pcs Practice Tennis Training Ball String Self Study Elastic Durable Trainer Replacement for Beginner Single Player

Premium Material: The tennis balls cords are made of rubber material, which are durable and sturdy, also are reusable and not easy to break, will provide long time service Special Design: The tennis training ball strings adpot elastic string and yellow color design, which will improve the accuracy of your strokes, even when playing in low light conditions Easy to Use: It's easy to use our elastic tennis training balls, just tie one end of the string, attach the other end to the racket or the ground, make it heavy enough to make the ball bounce Package Content: The package comes with 2pcs tennis trainer replacement balls, please check the specifications before you place an order, also the quantity are sufficient to meet your needs Wide Application: Our self exercise tennis balls are suitable for beginners and intermediate tennis players, the coach is a good teaching tool, also are ideal for indoor and outdoor sports