Table tennis balls made from the innovative ABS material have become increasingly popular among players of all skill levels. The Butterfly S40+ is a product of our continuous development and rich experience in manufacturing competition balls from ABS material in Germany, leading to a marked improvement in playing characteristics: The S40+ features a rougher surface which makes it easier to impart spin on the ball while the increased friction will also result in a lower bounce during topspin play and a more discrete sound. The even roundness and hardness result in a reliable bounce and high durability.