Features:Style Includes: Bicycles headset spacers are optional 10mm/15mm/20mm/30mm/50mm sizes, variety of sizes for you to adjust the appropriate height.Good Material: Our bike headset front fork spacers are made of quality carbon fiber material, anti-corrosion and lightweight, ultra-light and high strength.Applicable Scope: Bike fork washer be suitable for most road mountain bikes. Antioxidation, black color, and with non-fading outsides, and good precisions.Advantages: Headset spacers be super light, high strength, corrosion-resistant, no rusty, and can replace aluminum-alloy bicycles headset partitions.Variety of Sizes: Headset spacers come with variety of sizes for you to adjust the appropriate height, the small size of the spacers earphone allows you to adjust the height more accurately. Specifications:Material: Carbon FiberColor: As The Picture Shows Style Options: 10mm/15mm/20mm/30mm/50mmSize: As The Picture Shows Note:Please allow 1-3mm error due to manual measurement. Please make sure you do not mind before you bid.Due to difference between different monitors, the picture may not reflect the actual color of the item. Thanks! Package includes:1Pc x Bikes Headset Spacers