Do first things first. and second things not at all. - Well. there will be second and third things coming. Non the less. starting with a solid base has never been wrong and would have gotten Pisa a straight tower. That's why with Access we're setting a reliable base to transfer your skill onto the road. Ultra Reactive Polyurethane cast onto a rigid yet responsive core. results in outstanding sliding control at incredible comfort.This 100mm urban. street. and slide wheel is using a round profile to offer improved agility and precision.This set includes 4 100mm Access wheels.#AUGMENTEDMOBILITY