The current outdoor ball that is approved by the USAPA is the Dura Fast 40. The 40 denotes how many holes the ball has. Outdoor balls have more holes than indoor balls and typically weigh 0.9 oz more, to withstand the outdoor playing elements. Although there are many other outdoor balls, we would also recommend the Top outdoor ball, or the Onix ball.
For the indoor ball, we recommend the Dura Indoor ball or the Jugs Indoor Ball, which also meet USAPA tournament requirements.