You Won't Have to Refill It Often: This volleyball features a cotton-wrapped 80% butyl bladder that delivers exceptional air retention; It'll maintain perfect shape and pressure through intense games, practices, and tournaments Grip That Feels Like Premium Leather: It’s crafted with the highest quality imported microfiber composite leather that provides superior grip and a soft touch for comfort; You'll get consistent control on every set, spike, and serve Keeps Its Shape Game After Game: Advanced heat-sealing technology combined with precision-crafted 18 panels ensures this volleyball maintains a perfectly spherical shape, consistent flight patterns, and predictable bounces Advanced Heat-Sealing Technology: This technology, combined with the precision-crafted 18 panels, ensures the ball maintains a perfectly spherical shape for true flight. NFHS Approved: Our Crown Elite volleyball meets the stringent standards set by the National Federation of State High School Associations (NFHS), making them ideal for competitive play at the high school level and beyond. ROLARA Crown Elite Volleyball - NFHS Approved Official Size Imported Microfiber Composite Leather with Butyl Bladder for Superior Air Retention - Professional Competition Game Volleyball