Features: Material: This classic-style mechanical bike odometer features a sturdy aluminum alloy construction, ensuring durability and longevity even under demanding riding conditions. Easily install this odometer onto your bike handlebars using the included mounting hardware. Its compact size and lightweight design ensure minimal interference with your riding experience. The vintage aesthetic adds a touch of classic charm to your bike, helping it stand out. This is more than just a functional tool—it's a stylish accessory that enhances your cycling experience. The simple, intuitive design makes the odometer user-friendly, with no complex setup or technical knowledge required. Begin your cycling adventures right away. The product includes all necessary accessories for easy installation, allowing you to install it yourself with ease. Notice: 1. Actual color may vary slightly from the image due to different lighting conditions. 2. Please allow 1-3 cm deviation due to manual measurement. Material: Aluminum Alloy Size: As shown in picture