THE SOUND MACHINE "Made in Japan" The latest development of the VARIO rubber family has incorporated a soft sponge and extremely elastic top surface rubber. Japanese know-how has resulted in a very distinctive loud sound when top-spinning. This rubber is the softest of the three Japanese Vario rubbers and is very spinny. It produces a high arc of the ball with fast topspin. Suitable for attackers who like to combine a stiff blade with soft rubbers or allrounders who place value on spin, control plus good when striking the ball. 
DONIC Vario Sound - the rubber with a unique sound system

Brand Donic   Type: Smooth   Speed: 86   Spin: 92   Control: 71   Hardness: Soft   Sponge Thickness: 1.8,2.0,Max