See pen marking. New and prepped to be used in NCAA BVB tournament. Wilson is the official volleyball of the AVP tour. New enhanced VST™ (Visual Spin Technology) uses strategic color variance and a vibrant palette to increase spin detection for the ball in all outdoor environments. The best players on the beach are always one step ahead. When you can read and react to where the game is going, you can be too. The breakthrough design of the OPTX AVP Tour Game Volleyball brings a whole new visual approach to the beach. New VST™ (visual spin technology) uses strategic color variance to enhance the human eye’s ability to detect spin on the ball. A vibrant color palette and Optic Flow graphics allow the ball to be more easily tracked in the diverse environments of beach volleyball, like clouds, sky, sand, water, and crowds. Using the same construction as the original AVP game ball, you can expect the same signature Wilson performance. With the OPTX AVP Volleyball, you’ll see the game like never before.