The NX-360 inline wheels is the benchmark for performance cross-training wheels. With a star performance hub, the most successful race hub in the world, integrated into a top cross-trainer. Ultra Resilient Compound for the ultimate balance of properties to blast over any surface. With superior grip, snappy response, ultra-resilient compound. The NX-360 is for all outdoor surfaces from smooth to rough roads. . Compatible Bearing: 688 Micro, Skate Type: Recreational, Recommended Use: Recreational Outdoor Skating, Bearings Included: No, Number of Wheels: 4, What Bearings are Included?: None, Model Year: 2012, Product ID: 132202