- The official ball of professional beach volleyball, the Wilson® AVP OPTX Official Game Volleyball combines Optically Tuned Performance technology for enhanced court visibility with 18-panel hand-sewn construction that delivers a consistent flight path and superior spin control. The premium microfiber composite cover offers a soft touch that rewards finesse players while standing up to the abrasion of sand play at the highest level. - Official ball of the AVP Pro Beach Volleyball Tour. - OPTX technology provides enhanced visibility in bright, sunny conditions. - 18-panel hand-sewn construction delivers true flight and reliable spin control. - Premium microfiber composite cover offers soft touch and sand-court durability. - 100% microfiber composite leather. - Imported. Measurements: • Circumference: 26 to 28 in • Diameter: 9.84 in • Weight 9.1 to 9.8 oz