Bones SPF 84B Scorpeedo P5 Sidecut Skateboard Wheels Size:56mm A lighter core

A lighter core

unstructured low profile with adjustable strap back

Hook and loop closure for easy on and off

Closure: Velcro Tab Closure With Gusset

Bones SPF 84B Scorpeedo P5 Sidecut Skateboard Wheels Size:56mm A lighter coreSkatepark Formula (SPF) is very high quality urethane specifically formulated to resist flatspotting on slick or smooth surfaces while maintaining a higher rebound for a quicker response and a faster roll. Skatepark Formula has a high resistance to abrasion while not compromising hardness and slide ability. Simply put Skatepark Formula wheels grip better on slick surfaces, are almost impossible to flatspot, and are the fastest, longest lasting wheel