Radar Crush is the first and only wheel designed specifically for outdoor roller dance. Manufactured in the USA, the Crush wheels offer a dazzling combination of control and feel. At 48mm tall, transitions, spins, and crazy legs are easy and fast. High rebound 84A (Lavender) and 88A (Seafoam) formulas offer versatility for all types of outdoor surfaces. Sold in packs of four wheels. To order a full set of wheels, be sure to set your quantity to two.