Get ready to add some POP to your skating style with the all new 59mm Radar Pop wheels. The new USA made Radar Pop wheel offers grip, speed, and durability at a great price. The new Durathane Urethane formula is designed to provide good grip across the hardness range and has excellent durability. With a smaller hub and lots of urethane, the new Radar Pop wheel has a smooth, controlled ride and is a perfect wheel for derby skaters looking for an extra durable, grippy wheel. Sold in packs of 4, and measuring 38mm wide, the Radar Pop wheels are available in the following colour/hardness combinations; Yellow 88a Blue 91a Pink 93a Green 95a