TIMESETL 3pcs Tennis Balls with Cord, Elastic Training Ball for Trainer, Rebound Kids Adult Beginners Solo

【Long-lasting material：】 The tennis balls with hard rubber core and woven felt on the outside increases durability and offers you a pleasant striking experience every time. Built-in stable wire hole that does not fall down easily. 【Comfortable to use：】 Just tie one end of the string, attach the other end to the racket or the ground and enjoy your tennis training to the fullest! No problem with the frequent picking up of the balls and you can start your training all by yourself! 【Excellent Design:】 Unlike other tennis balls, the bright yellow color of the ball improves the accuracy of your strokes, even when playing in low light conditions. And great elasticity when bouncing up to a height of 1.35 m. 【Suitable for】 Both professionals and beginners can play tennis with the rebound balls indoors and outdoors to improve hand and eye coordination. 【Package Included:】 You will receive 3 tennis training balls, enough amount for your daily training and replacement. In addition, we provide each ball with an additional 4 m long black rubber rope. Lightweight and easy to carry anywhere.