In Airoc Astro we have multiplied the amount of microscopic air bubbles (Oxygen Capsule System) in the sponge creating more intense catapult effect and speed. The new topsheet works as an energy transfer between the sponge and the ball which provides every stroke with precision and power. Developed together with members of the Chinese National Team to take advantages of the Poly Ball. Optimized to produce an elastic feel when striking the ball. Perfect rubber for offensive attackers who plays with spin, feeling and sound. The OCS-Sponge provides the player with enough catapult effect to take advantages of points away from the table. Airoc Astro S is the perfect choice for players who wants long trajectory shots with incredible amounts of spin.