The 3 Star R40+ is Butterflys newest plastic table tennis ball! These are professional table tennis balls approved by the International Table Tennis Federation (ITTF) and USTTA for top level tournament play. The ball itself plays very similar to that of a traditional celluloid ball but is more environmentally-friendly. The R40+ balls are regulation size (40mm) and are very round, characterized by the exact same thickness at all points. This creates a very consistent bounce that can be appreciated by table tennis players of all levels. This ball is made in China and manufactured under strict quality control achieving high uniformity, stable rotation, speed and balance. Professional table tennis players can depend on this ball just like they depend on other Butterfly table tennis equipment to have the highest quality. The Butterfly 3 Star R40+ is the official ball of the 2018 World Table Tennis Championships in Halmstad, Sweden. Take your game to the next level with Butterfly!