Martin Kilpatrick 3 Star Table Tennis Balls - 6 Pack - 40mm - White - Poly Ping Pong Balls - Excellent Quality 3 STAR TABLE TENNIS BALLS - High quality 3 star ping pong balls are great for competitive play GREAT BOUNCE - The perfectly round Martin Kilpatrick 3 star table tennis balls are regulation size - 40mm - and are the same thickness on all sides creating a very consistent bounce PLASTIC BALL - The poly table tennis balls closely resembles the bounce of traditional celluloid ping pong balls and are environmentally friendly LONG LASTING - Plastic or poly table tennis balls replace the traditional celluloid ping pong balls and can withstand more abuse MARTIN KILPATRICK PING PONG BALLS - Martin Kilpatrick balls work well with training, competition, schools, and are great used in table tennis robots