The TSP Spectol 21 with hardness of 3 and the orange sponge is to play 40 mm balls. It enhances all of the playing characteristics of Spectol pips-out rubber. This new combination produces a unique kind of spin of its own that can be troublesome for your opponents. This combination can be powerful weapon when used on the backhand side of a shakehand racket.
TSP Spectol 21, TSP has managed to give this elastic pimple out rubber more speed with the same control. Suitable for direct attacking at the table.
Hardness: Soft 30 degrees