Product Description The Champion Sports Roto Molded Outdoor Pickleball meets USAPA requirements for outdoor tournament pickleball play. It has all the qualities you've come to love in an outdoor pickleball. It's durable, seamless, hard plastic and has 40 holes. This ball is "rotationally molded" from a single chunk of hot plastic that is placed inside a hollow rotating mold under low pressure until it has completely melted into the wall of the mold.