High-quality materials: The base is made of durable and high-quality plastic. The extra rubber rope has high elasticity and abrasion resistance, and is exquisite in design and fine in workmanship. Exquisite design: Since the base has a valve for placing sand or water in it to increase weight, and a small ring for the side of the sling, the groove for placing tennis is convenient and can provide stability Training support. Easy to use: The trainer is easy to train, no need to pick up the ball, light weight, easy to carry and easy to practice. It can also improve your concentration, athletic ability and hand-eye coordination, and stimulate sports interest. Precise motion: The base of the tennis trainer can help improve stroke movements, footwork and precise control, tennis skills, and is suitable for gardens, parks, etc. Perfect Gift: A great gift for friends, family and children who like to play tennis. It can help improve batting moves, footwork and hit accuracy, tennis skills, and is suitable for many places such as gardens, parks.