Highly suitable for single training: With the help of the volleyball training belt, it's very easy to practice serving, receiving, and arm swing techniques, allowing you to throw repeatedly. After each swing, the elastic rope returns the ball. You don't need to retrieve the ball, which keeps your training smooth without interruption. Passing hand training: This auxiliary set supports the ball in the center of your palm during training, ensuring your passes maintain the standard hand shape. When used in conjunction with a finger tension trainer, it can enhance hand strength, making passes more beneficial, effective, and accurate. Finger protection sleeve: This finger protector can prevent finger joint dislocations and reduce finger injuries. Suitable for volleyball, basketball, and other sports exercises. Suitable for most people: Suitable for ball sizes 3, 4, and 5. The volleyball training equipment set has a flexible and adjustable design, suitable for teenagers, adult volleyball beginners, and professionals of various body types to practice and improve their skills.