Very suitable for solo training -this volleyball training equipment auxiliary tool will guide the ball back after each swing, so spend more time hitting the volleyball and less time to chase them. There is no need to interrupt training to get the ball, which can be practiced for several hours without others. This ball is easy to hold the ball, just use one side on the bag, and stick the other side to the other side according to your needs.Improving spherical control skills -enhanced players' touch, settings, peaks, manual or undercover services, arm swing, controlling and throwing, can warm up or better improve volleyball game skills before the game. ^^^^^The adjustable belt and elastic rope -this belt pad comfortable to the waist comfortably, which can better protect your waist. You can adjust it to adapt to different waist circumferences of most players. The elastic rope can provide you with sufficient length, and even hit the beating shooting and peaks, without the ball rebound back to your face. ^^^Standard hand movement-using adjustable lyric bands with plastic knobs is firmly fixed on the palm of the hand to strengthen the correct manual placement on the ball to standardize manual or reduce fouls. At the same time, training is set to avoid during the training period Touch the ball. ^^^^^A bag that is suitable for most ball -design can be adjusted to accommodate sports balls of any size, such as volleyball, football, beach volleyball, water ball, and even basketball. From beginners to all experience levels of experts from experts to experts. ^