Waterproof Dustproof-- Bmx headset bearings has a refined finish to make your car mouthpiece look more luxurious and prominent, a quick and easy way to make your car interior look more stylish Exquisite Workmanship-- Headset bearings 1 1/8 has clear printing and exquisite workmanship, which reflects the guarantee of its quality and will not disappear with the number of uses Anti-Rust and Wear Resistant-- Headset bike is made of high-quality steel, durable, rust-proof and wear-resistant, and can be used for a long time Universal Fit-- Scooter headset bearings is a useful accessory for races, mountain bikes, road bikes and more External Diameter-- External diameter 41.8MM, angle 45, fits for your bicycles Product Keenso--2PCS 41.8MM Heavy Duty Mountain Bicycle Bike Double Sealed Bearing Headset Accessory. External diameter 41.8MM, angle 45, fits for your bicycles. Use sealing rubber ring, can effectively prevent water and dust from entering Package List: 2 * Bearing Headset Note: 1. Please allow 0~1 inch 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.