●Specifications: Grain high rubber ●Performance: Includes sponge (control: 10, speed: 6, spin: 6, change: 5) ●Sponge thickness: 0.01 - 0.02 inches (0.3 - 0.6 mm) (sponge thickness cannot be selected) ●When attaching this product to your racket, please use the Attach Power Glue approved by the Japan Table Tennis Association ●Certified: The Japan Table Tennis Association (J.T.T.A) ●Made in Japan