For more than 30 years the world's No. 1 rubber. Why? Because it has consistently been refined and adjusted to the advancement of table tennis. Because it is easy to play with.
The combination of a relatively hard and spinny surface with a medium and flexible sponge makes SRIVER an explosively offensive rubber (with 1.9 mm to max sponge) or an easy-to-vary and controlled all round rubber (with 1.3 to 1.7 mm sponge).
With SRIVERs on your bat you have always the answer to match any kind of playing situation.