Whether you are in the mood to skate on quad skates or inline skates, the Roller Derby Falcon 2-in-1 Adjustable Quad and Inline Skates Combo have got you covered. The interchangeable frames let you swap from quad to inline skates using 2 allen wrenches quickly and efficiently, and the nylon uppers with polypropylene shells offer resilience. The synthetic liners and boots conform to your feet for ultimate comfort, and the toe stops on the quads and heel brake on 1 inline skate deliver safe and reliable stopping.