CONFIGURATION: Age Grade: Over the age of 0. The second generation of reflective leather + double-wrapped yarn liner + bronzing LOGO process. Official Size, Circumference: 65-67CM, Weight: 269-280g. CHARACTERISTICS: The independent patent solves the shortcomings of the poor friction of the first generation of reflective leather. We specially customize the bottom layer for the second-generation reflective leather, which greatly improves the integrity of the ball. INSTRUCTIONS: Please note that when the reflective leather needs to be matched with the flash of the mobile phone, the "glow" effect can be taken on the mobile phone screen. INTERNAL FEATURES: Full-fledged effervescent gall bladder is used to maintain durability. A 200-meter-long winding thread is used on the surface of the bladder to enhance the overall texture and maintain the stability of elasticity. We are not afraid that you open the ball to check if we really use enough wrapping yarn QUALITY CONTROL: Quality assurance from the inside out, multilayer wrap yarn process with high grade butyl bladder ensures the stability of the volleyball. All manual fitting process to ensure quality. Waterproof Indoor/Outdoor Volleyball for Pool, Beach Volleyball & Indoor Volleyball Ball Play. Recreational Training Ball for All Ages (Size 5) PREMIUM QUALITY & STYLE OPTIMAL PRESSURE UNIQUE & MODERN soft air pool year old highly recommend playing basketball hold air new ball ball when you can get ball is great bounce balls outside unique outdoor pattern pump smell camo dribbling grip hold air year old stay indoor and outdoor every time air well grip bounce held pump volleyball grandson practice evolution great ball times a week best indoor high school ever used son loves highly recommend indoor use really like basketball i have ever best great feel great ball high school highly recommend good grip great feel great sporting goods great grip high quality balls ball ever indoor use