Formula Four urethane. More speed & control on all surfaces. Unmatched flatspot resistance. Smooth anti-stick slide. High rebound compound. 100% true performance urethane.
Lock-Ins - asymmetrical shape and design. Conical cut profile opposite a straight edge side for better lock-in on grinds etc. Hand cut precision.
53mm x 32.5mm with a 21.5mm riding surface