With our volleyball spike training equipment you can easily improve your jumping, hitting speeds and force, arm swing technique, foot work and ball contacting without the need of a second person. The product is in a simple design, but it is very useful and practical. Features -Color:Black -Material:Webbing -Size:26.00X16.00X2.00cm/10.22X6.29X0.79in - Made of premium and stable material for practical and durable use. Suitable for all levels of volleyball players, beginners or advanced players. - Elastic cord is adjustable to accommodate any hitter's height. You can practice a variety of skills, such as serving, spiking, hitting and returning. - Great for athletes of all skill levels. Train in a gym or train at home. - Improve your child's jumping ability by training volleyball spiking and strengthen the body. - It can easily connect to volleyball goals, poles, broom handles, backyard play sets, garage ceilings, and much more. Package list: 2 x Straps 2 x Covers