These are 729 ***(3) Star balls 40mm table tennis balls with seamless design in ORANGE or WHITE. 729 (Chinese) 40mm Balls have consistent weight and bounce necessary for USATT sanctioned and ITTF sanctioned events.
This ball is the most durable design with a perfect balance of wall thickness and density. Unlike most 3 stars 729 uses 3 quality checks; Roundness, (industry standard), Weight, (industry standard), the third check that is used only by 729 manufacturer is a cell wall density check for a more consistent bounce, and increased durability.
USATT/ ITTF APPROVED!
