The rubber is coated to control and extremely fast ball speed. The horizontal and vertical arrangement technology is adopted to enhance the magnetic permeability of the rubber sleeve through more elastic rubber particles. Adopt new elastic sports sponge and special adhesive to enhance the integrity of the rubber sleeve Make the ball arc longer and show good performance. Providing powerful elasticity and support, the inner strength is unfathomable. It is flexible and resilient, with plenty of power, allowing you to hit the ball as accurately as you wish, and has a unique tone. Colour:Black&Red Material:Anti-adhesive Package Contents: 2 x Table tennis racket rubber (black + red) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.