As with the other rubbers from the ACUDA series, ACUDA S3 produces excellent spin. The very soft sponge increases feel and sound, and offers sufficient speed for powerful spin and a positive block game. Playing with DONIC ACUDA S3 will guarantee success and pleasure. It has a unique sound!Sponge hardness: softPlaying characteristics: spin-optimized, fast, paired with perfect sound. Recommended for: Spin and allround players who require excellent control.