A. Lightweight: The tennis racket grip strength trainer has a relatively light overall weight and may not significantly add to the weight of the racket. Even when held for a long period, one may not easily feel tired. B. Silicone material: The tennis racket grip strength trainer is made of silicone material, which feels soft and comfortable and is not prone to damage. C. Exercise tool: Using the tennis racket grip strength trainer can help exercise the finger grip spacing and assist in better ball - hitting during sports competitions. D. Sports accessory: The tennis racket grip strength trainer can assist in firmly holding the tennis racket, reducing the likelihood of the racket slipping, and is quite practical. E. Compatibility: The tennis racket grip strength trainer is suitable for various types of rackets. It has a wide range of applications and can provide a comfortable feel when people play tennis.