The Orca Pickleballs Pi 40 outdoor 6-pack is a USAPA official size 40-hole ball for tournament play designed for fast shot volleys, crack-resistant gameplay, and balanced precision in both warm and cool temperature climates on hard-court surfaces. The machine-drilled holes and advanced Seamless Rotomolding technology used to make the Orca Pi 40 outdoor pickleball provide true ball flight and reliable quick shots in outdoor court conditions like wind. This ball meets pickleball equipment standards at 0.917 Ounces (26 Grams) with a diameter of 2.913 inches (74 mm) and is USA Pickleball Approved making the balls great for outdoor tournament play and round after round of practice. Made of PE with 40 machine-drilled holes to help create smooth flight movements and consistent bounce on hard surfaces found on indoor and outdoor courts. The consistent clean fluorescent yellow color of the Orca Pi 40 Pickleballs helps improve visibility and meets the USA Pickleball standards to deliver the same high-quality game experience players know they get from Orca brand paddles. Manufactured with advanced technology to make them fast-flying, balanced, and durable for players just getting started to the most demanding players dominating tournaments today.