The go-to rubber for offensive players who prefer speed. Sponge hardness of 42 degrees for increased feel and control in every shot. Long life thanks to the combination of natural and synthetic rubber. Emits a crisp, clear sound when you hit the ball. OCS (Oxygen Capsule System) technology provides increased speed in stable, even strokes. Lightweight in comparison to other rubbers on the market. Designed in Sweden and manufactured in Japan.