Multifunctional: the volleyball training aids doubles as a volleyball holder, thus serves multiple functions; It is highly effective as both a volleyball training aid and a hitting trainer equipment Master Your Spikes and Dunks with This Dual Volleyball Basketball Trainer Wyz21197 Adjustable Serving Trainer Volleyball Spike Trainer - Adjustable Height 63-77 With Question Mark Hook, Durable Lightweight For Serving, Spiking & Jump Training - Real Ball Feel, Ideal For Beginners To Pros (No 3 Sizes for the Perfect Fit]Designed with professional coaches, our trainer comes in 3 sizes for better comfort, durability, and precision training. If you use multiple ball sizes, choose SPT5005 for maximum versatility Practical Design: the volleyball hitting trainer is designed to assist in the training process, making it an essential volleyball training aid, You can use the telescopic volleyball drill to help you better practice your jumping and reaction abilities The Volleyball Spike Trainer has been carefully designed (Patent pending) to accommodate players of any skill level, from beginners to experienced players. Constructed from premium aluminum alloy and high-density foam, this volleyball hitting trainer ensures longevity and resilience Adjustable Height: one significant feature of this volleyball training equipment is its adjustable height, making it suitable for both young players and adults; This feature ensures all levels of players can use this volleyball training equipment effectively