TRAIN YOURSELF TO GET BETTER - With this training equipment, you save time by hitting the ball more instead of running far to retrieve it. Perfect solo training for all levels, from beginners to experts. STRONG & ADJUSTABLE ELASTIC CORD: Our volleyball training equipment features the best elastic cord that can be adjusted to your needs. This volleyball training equipment returns the ball to you after each swing, giving you more time to FOCUS on your SERVING, SPIKING, PASSING, etc. UPGRADED PREMIUM QUALITY: This solo trainer has a quality neoprene belt with LONGER nylon sticker and STRONG STITCHING. The cord is made of high-quality elastic material, and we have upgraded it to \"5\" which can hold the ball much better than the old \"4\" and \"5\" will have more room to move and feel the real ball when you practice. FITS ALL BALLS: Neoprene pocket with 5 compartments with adjustable length accommodates all sizes of volleyballs or soccer balls. You can train however you want. Color: black Material: Diving fabric + nylon + elastic rope Size: Diameter: 14 cm, Waist: 80 cm Package contents: 2 x volleyball spike trainers Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be a little different from the real thing. The allowed measurement error is +/- 1-3 cm.