Based on the Optra and Speed Effect Inside Technologies and its further developments, TIBHAR created a Premium product, Genius Optimum. The pimple structure of Genius Optimum is a little bit different and smaller than the pimple structure of Genius, thus conferring more rotation and an unbelievable dynamic in topspin games. Are you looking for a rubber for your double sided topspin game, would you rather play topspin duets? Genius Optimum is made for you.