Feature: 1. Better Performance: Able to improve the performance of your model car, adding more fun for your playing with stable performance. 2. High Accuracy: Manufactured with high accuracy, perfect for the model to replace, suitable for Arrma 3S 1/10 remote control car. 3. Stainless Steel: Made of stainless steel material which is not easy to corrosion, durable, providing a satisfying using experience. 4. Small Resistance: Has a smaller rolling resistance than rubber sealed ones, good compatibility, easy installation, well meet your needs. 5. 4 Bearings Content: The package contains only 4 ball bearings, other accessories and tools need to be prepared by yourself. Specification: Item Type: RC Ball Bearing Kit Material: Stainless Steel Color: Silver Application: For 1/10 Remote Control Vehicles, Such As For ARRMA Typhon, For Big Rock, For Senton, For Granite 3S Product Size: Approx.15x4mm/0.6x0.2in Inner Diameter: 10mm/0.4in Weight: Approx.9g/0.3oz. Package List: 4 x Ball Bearing Note: 1. Please allow 1‑3cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.