Simply put… Skatepark Formula wheels grip better on slick surfaces

Padded tongue and collar lining locks foot in

maximum support

and features ventilation holes in the toe box

Super Anti Fog coating

SPITFIRE F4 CLASSIC WHEELS Fit_Kid's Simply put… Skatepark Formula wheelsSpitfire Formula 4 features more speed and control on all surfaces, unmatched flatspot resistance, smooth anti stick slide, high rebound compund. 100% true performance urethane. Bighead Shape: A wider version of the classic shape designed for lasting speed and a more controllable slide. Measures 54mm x 34. 6mm with a 17. 4mm riding surface and 99A durometer.