General description These 8Pcs Ceramic Bearings are designed for high-speed performance and durability, making them ideal for skateboards and roller wheels. They feature high temperature, corrosion, and wear resistance, along with a high-speed nylon cage suitable for demanding environments. The bearings are designed to keep lubricant in and contaminants out, ensuring optimal performance. Technical specifications Bearing type: Hybrid ceramic bearings Shield: Double-sided dust cover Material: Mixed material Color: Black and red Size: Small and easy to carry Measurement allowed error: +/- 1-3 cm Package Contents 8 x Skateboard wheel bearings Usage Not suitable for jumping or other strong impact actions. Other information Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.