Description: Wheel size: 60mm diameter x 45mm width; Durometer count: 78A Polyurethane wheels. Set of 4 wheels. There comes with high steel bearings and spacers, which need to be installed on wheels. They roll pretty smooth,very durable for street skating and extremely smooth on terrain. These wheels are perfect for cruise board.They are great for cruising and many early street tricks.They can also do well on smooth concrete or asphalt. Replacement wheels for longboard, cruiser, skateboard rebuilding or repair kit. Specification: Material: PU Hardness: 78A Dimension: 60(D)x45(W)mm\/2.36x1.77inches Package Includes: 4 Pieces Wheels 8 Pieces Bearings 4 Pieces Spacers Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.