Fits Most Volleyball: With the adjustable strap ball pouch, volleyball training equipment aid can be adjusted to hold standard volleyball or beach volleyball, even hold soccer, or basketballs; Don't worry about choosing an inappropriate size Adjustable Elastic Cord: The elastic reinforced cord is adjustable in length you can adjust the length of the one-person volleyball trainer cord according to your surroundings, which allows you to react with enough time to catch the ball when it rebounds. The belt is 2.2 m and extends up to 6.5 m Size Adjustable Around Waist: The Hoop and Loop strap fits comfortably around the waist, which can be adjusted to accommodate different waists. Whether you are a teen or adult, the stretchable hook and loop waistband with buckle design will provide you with a custom fit Great for One-Person Training: This volleyball training equipment aid you can practice serving, setting, spiking, and arm swing passing in the comfort of your own home, without needing another person's help. Very suitable for beginners and volleyball players Wide Application: Our volleyball training aid can not only help practice your volleyball skills but also provide great fun to kids; it is perfect for indoor and outdoor use; In addition, it is also an ideal gift for your kids or friends