1.ROBE BUILDING With excellent bearings, this pong ball trainer a seamless and enjoyable experience. The soft and hard wheel design prevents damage to the racket and is highly pressure resistant and weatherproof, ensuring longterm use. 2.VERSATILE TRAINING SOLUTION Equip the perfect pong ball trainer for players of all heights and ages. With highly adjustable training wheels, this versatile training solution allows everyone to comfortably improve their skills. 3.Improve your control: the table tennis training wheel for top spin training and learning is suitable for table tennis players of all levels and a convenient device for learning and practicing spin variations. 4.ADVANCED DEVELOPMENT Improve your table tennis skills with a variety of training exercises that efficiently strengthen muscles and improve the skills of beginners.