Realistic Ball Movement-- Improve your hitting technique without chasing a ball with this volleyball training aid. Work on arm swing, ball contact, and footwork without the need for another person. Benefits-- A great trainer to improve fast arm speed and spiking power. Perfect for hitting, conditioning, and agility drills. Ease of Use-- Comes with a large hook to easily connect to basketball rings, poles, broom handles, backyard playsets, garage ceilings, and more. Note-- Height can be adjusted slightly with the buckle on the nylon strap (up to 7.5 cm / 2.95 in). The maximum length of the nylon strap is 43 cm / 17 in. The ball holder pouch is 32 cm / 12.6 in. A Must-Have for Spiking Techniques-- Lightweight and durable, the spike trainer holds the ball securely in place while the attacker develops form and hitting techniques, ideal for use at camps, clinics, and practices at all levels.