Features: 1. Four Size Provided: We provide 5mm/10mm/15mm/20mm with 4 colors for you to chose, multiple choice and simple to have. 2. Premium Quality: Made of high-quality aluminum alloy material, lightweight and tough to use, serve for a long time. 3. Suitable For: This spacer is suitable for various of mountain bikes and road bikes which the front stem fork is 28.6mm. 4. Easy To Install: Fine work make it adapt, easy to install, convenient to use. 5. Guarantee: If you are not satisfied with our product you received, you can send emails to us at any time. We will reply you instantly and help you solve your problem. Specifications: Condition: Brand New Material: Aluminum alloy Color: Black, Red, Blue, Silver (Optional) Quantity: 4pcs 4Pcs/Set Size(Height): Approx. 5m/10mm/15mm/20mm Package Weight: Approx. Suitable for: 28.6mm Front Stem Fork Package Included: 1 x Set of 4pcs Headset Spacer Please Note: 1. Please allow 0-1inch errors 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.