World class premium leather competition volleyball. Revolutionary patented Dual Bladder Construction (DBC) method. Intended for use at the highest levels of competition. Approved by the NFHS (National Federation of State High School Associations). Intended for play for all ages. Circumference: 25.6 - 26.4 in./65.02 - 67.06 cm. Weight: 9.1 - 9.8 oz./257.98 - 277.83 g. Cover: Premium Leather. Construction: Dual Bladder Construction. Bladder: Butyl. Color: