durable and practical for a long service life to use. The well-designed hook & loop fastener makes it easy to assemble and simple to use. Securely holds any indoor and beach volleyball size. It can easily connect to volleyball goals, poles, broom handles, backyard play sets, garage ceilings and much more. Having great time right away for indoor games, outdoor games, backyard games with this volleyball spike trainer. The elastic cord is adjustable to accommodate any hitter's height and the length you want. Suitable for all levels of volleyball players, beginners or advanced players. Allows players to perform many repetitions without having to stop and shag balls. Moreover, it helps to teach full arm extension and correct body position in relation to ball at contact. Designed to improve all aspects of your volleyball attack, perfect for ball contact, arm swing, footwork training techniques, repetitive hitting drills, and conditioning exercises. It is much easier to practice arm swinging techniques and tosses multiple times in a row. Colour:Black Material:Elastic+Webbing Package Contents: 1x volleyball spike trainer kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.