Bộ Dụng Cụ Luyện Tập Tennis

1pc Blue Plastic Racket Ball Trainer Single Tennis Practice Base Elastic Tennis Exercise Training Device Feature: It can hold water, which is convenient to pour water and irrigate. It is light and durable for us to use. The trainer base can be used to train tennis with strings. The weight of the base is about 1kg after the tank is full of water. Specification: Size: Base: length 23cm/9.05", width 15cm/5.90", height 8.5cm/3.34" Tennis: 6cm/2.36", Rope Length: 4m/1.57" (The bouncing height of the ball is 1.2-1.4m/0.4-0.5".) Color: Blue Material: Base: plastics, Tennis: natural rubber Usage: The black plug can be pulled out. It can be filled with water or sand. It can be used by fastening a ball with a thread. 1.It is not limited by the venue with moderate exercise. And you don't need to frequently pick up the ball. 2.It is suitable for office and community elderly people to exercise, schools, entertainment places and youth entertainment activities. Notes: 1.Please allow slight differs due to manual measurement. 2.Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.