Donic Coppa JO Gold provides excellent ball control and great feel due to the spin-elastic surface. The precision and control of Donic Coppa JO Gold is incredible and is the ideal rubber for most attacking players. This rubber suits players who like to hit fast topspins at half-distance and still be able to block opponents attacks. Maximum speed of it will add more fun to your game. This is an ITTF approved tennis rubber with a medium hard sponge. A perfect choice for players who want to upgrade to an assembled racket.