Uikherxn Tennis Trainer Rebound Ball with 3 String Balls, Portable Tennis Training Tool

["The base of the tennis training tool is filled with water or sand and becomes heavier instantly. This design allows it to be perfectly fixed in place without shaking; the anti-skid pad at the bottom of the backboard increases the friction with the ground and improves the stability. A special device for connecting anti-wrap hooks is added to the outside of the ball seat. When used with the anti-entanglement hook, the rubber band will no longer be tangled.","3 tennis balls, 1 base, 1 anti tangle hook and 1 portable mesh bag. The core of our tennis ball is much thicker than normal tennis ball, so the rebound will be much better than normal balls. The felt is made of wool; it feels better and more durable. The portable tennis training rubber string has high elasticity and wear resistance, which can shorten the rebound force, wrap some of the cord around the base to your desired length or you can stretch it for heavy and longer swings.","Single player training tennis: no need to wait for a companion, simply training with yourself. No need to pick up the ball, the tennis ball hits out with the elastic rope to rebound automatically. Get started to train your serve, forehand and backhand easily","Tennis trainer was made of light and durable material. You can carry the trainer wherever you want with the mesh bag. When you are done with your training, simply wrap the rubber string around the tennis trainer, place it in the mesh bag and you are ready to go.","Tennis trainer is a good gift for tennis lovers, family and children who like to play tennis. It can significantly improve swing rhythm, tempo, footwork and techniques. It is ideal for indoor and outdoor practice such as playgrounds, gardens, parks, tennis court and etc."]