- GTX is a kind of offensive table tennis rubber sheet developed for balls made of 40+ new material, with high fault-tolerance and great convenience to use. The super-viscous matte surface gets the ball rotating powerfully and significantly reduces the slowing of the flying ball, with more variable second bounce. The super elastic big hole sponge with a golden ratio enables a jetting ball giving enough strength and greatly increases the offensive force. After hundreds of times of matching and fine-tuning between the rubber sheet and the sponge, the overall perofrmance is optimized.