Gamma Photon Outdoor Pickleball 6 Pack Indoor pickleball just got more electric with the Gamma Photon Outdoor Pickleball 6 Pack. These new balls are the most durable and bold-colored, making for long-lasting and exciting game play. Players will enjoy consistency and the benefits of true flight engineering. USAPA Approved for sanctioned tournament play. Two-piece construction for a true, consistent bounce. Features 40 precision molded holes creating a stable and accurate ball flight.