Specification: Item Type: Aluminum Alloy Star Nut Stem Cover Material: Aluminum Alloy + Steel Weight: Approx.29g/1oz Suitable for Headset Cover Diameter: Approx. 31.7mm/1.2in, Suitable for Upper Tube Forks Diameter : Approx. 28.6mm/1.1in Package List: 1 x Screw 1 x Headset Cover 1 x Star Nut Note: 1. Please allow 1‑2cm 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.