Features: New and high quality Includes: Bicycle headset spacers in 2mm (1pc), 3mm (1pc), 5mm (1pc), and 10mm (3pcs) options. Multiple sizes allow you to adjust the appropriate height for your bike setup. Material: Made of high-quality aluminum alloy, lightweight, corrosion-resistant, and durable. Advantages: Lightweight, high strength, corrosion-resistant, and rust-proof. Suitable as a replacement for carbon fiber bicycle headset spacers. Applicable Scope: Compatible with most road and mountain bicycles. Offers good precision, oxidation resistance, and a fade-resistant black finish. Variety of Sizes: Multiple spacer sizes included for precise stem height adjustment. Smaller spacers allow for more accurate positioning. Specifications: Material: Aluminum Alloy Color: Black, Red, Blue, Gold Package Weight: Approximately 28g Type: 2mm, 3mm, 5mm, 10mm (included as listed) Size: As shown in the image Note: Please allow 1-3mm error due to manual measurement. The actual color may vary slightly due to monitor display differences. Package Includes: Set of 6pcs Bicycle Headset Spacers