"It can be slightly adjusted in height through the buckle on the nylon strap
Longest Size : 55CM/ 21.6 INCHES
Shortest Size: 45CM/17.7 INCHES
the ball holder pouch: 32CM / 12.6 INCHES
The spike trainer is lightweight and durable, which can firmly hold the ball in place while improving hitting skills without having to chase the ball.
It has a D Carabiner clip, which allows you connect the volleyball spike trainer to basketball rings, poles, broom handles, garage ceilings, etc.
It is great gift for girls, boys and beginners. It is perfect for you to exercise jumping ability."