The Mikasa® W6000 NCAA® Men’s Water Polo Ball is the official game ball for the NCAA® Championship as well as for FINA. Made from top-quality natural rubber, it is specially buffed to provide excellent grip and control. FEATURES: National Collegiate Athletic Association Championship (NCAA®) game ball Precision nylon wound carcass FINA and National Federation of State High School Associations approved Model: W6000 Click here for additional information relating to the Manufacturer’s Warranty.