Bluefire JP 01 Turbo is better than ever! Small changes to the structure of the sponge combined with a new pimple formation ensures that this Turbo rubber has enhanced dynamic and spin qualities.The open-pored sponge has similar sponge hardness to JP 01, with increased dynamic that is easily controlled. Medium+ sponge hardness, and spin-elastic top surface. Bluefire JP 01 Turbo is great for attackers who value good control. Playing with this rubber is a dream come true!