Penn Pro 3-Star Table Tennis Balls, 40 mm, Orange, 6 Count - Walmart.com
Penn 1-Star Table Tennis Balls, 40mm, White, Six Count - Walmart.com
How to Choose Table Tennis Balls
Amazon.com : Franklin Sports Ping Pong Balls - Official Size + Weight White 40mm Table Tennis Balls - One Star Professional - Durable High Performance Ping Pong Balls - White - 12 Pack : Sports & Outdoors