PREMIUM MATERIAL: Tennis ball trainer the base is made of plastic, durable and wear resistant. And the sphere is made of imported natural rubber, which is sturdy and durable, reliable quality and long service life.LIGHTWEIGHT AND PORTABLE: The tennis trainer set is compact in size and very light when empty, so it can be easily stored and carried. It's easy to use and train without having to pick up the ball, helping with individual practice.DEVELOP SKILLS: A tennis coach can help you improve your strokes, footwork and accuracy, tennis skills, and many more in gardens, parks, and at home. It also improves the development of concentration, motor skills and hand-eye coordination and motor interest.GREAT ACCESSORIES: The tennis rebound trainer is a great piece of equipment to practice your shots, improve your swing speed, or just warm up, a great teaching tool for beginners and intermediate players. Great gift for friends, family and kids who love to play tennis.