Specifications: Item Type: RC Wheel Hub Optional Color: Black, Blue, Coffee Material: Aluminum Alloy Diameter: Approx. 52mm / 2in Width: Approx. 26mm / 1in Connector: Approx. 12mm / 0.5in Quantity: 4pcs Fit: Fits 1/10 Flat Running Drift RC Car Package List: 4 x RC Wheel Hub Note: 1. Please allow 1-3mm error due to manual measurement.Thanks for your understanding. 2. Monitor calibration is not the same.Item color displayed in photos may slightly differ from the actual object.Please use the actual one as standard.