The 720-40 technology, unnovated by “Friendship RITC 729” is a revolution of table tennis rubber designed for the 40mm Balls standard. This new 729-40 secret formula grant player a new freedom to select the hardness of the rubber itself, whereas the traditional heavy rely on the hardness of the sponge, to obtain optimal reaction force on ball. It also replaces the unpleasant smell of traditional rubber with a sweet smell.729-40S, with soft rubber sheet is the best choice for optimum sipn with best possible speed. Suitable for European aggressive and all round players who win their point with spin strategies. Combined with best quality German Sponge, will guarantee player excellent elasticity, great speed and good control.