Poly BD Urethane material around an aluminium hub, with grooves to allow the wheel material to flex under pressure. Sure-Grips top of the line wheel used for speed skating. The item "Suregrip Interceptor Pink 62mm 8Pk Wheel Derby Indoor Roller Skate FREE POSTAGE" is in sale since Thursday, June 25, 2020.This item is in the category "Sporting Goods\Skating\Roller Skates". The seller is "pm4853" and is located in Newcastle . This item can be shipped worldwide.