Feature: 1. Designed for Polar M450 V650 GPS computer. 2. 1-1/8\" diameter \u0026 5mm height stem mount, tightly attached to your bike. 3. You can adjust the angle of the mount, easy to use. 4. Made of CNC-machined aluminum, durable and strong enough. 5. 1-1/8in diameter \u0026 5mm height stem mount, tightly attached to your bike. 6. We provide 6 months of after-sales protection service. If you have any questions, please feel free to contact us. 7. 1-1/8inch diameter \u0026 5mm height stem mount, tightly attached to your bike. 8. Package List: 1 * Stem Mount, 2 * Hexagon Wrench, 1 * Hexagon Screw. 9. 1-1/8In diameter \u0026 5mm height stem mount, tightly attached to your bike. 10. Material: CNC Aluminum + Plastic 11. 1-1/8\u0027 diameter \u0026 5mm height stem mount, tightly attached to your bike. Specification: The stem mount is designed for Polar M450 V650 GPS computer, 1-1/8" diameter & 5mm height stem mount, it can tightly attached to your bike. Made of CNC-machined aluminum,durable and strong, ideal for mountain bikers. Features: Designed for Polar M450 V650 GPS computer. 1-1/8" diameter & 5mm height stem mount, tightly attached to your bike. You can adjust the angle of the mount, easy to use. Made of CNC-machined aluminum, durable and strong enough. Specifications: Material: CNC Aluminum + Plastic Compatibility: for Polar M450 and V650 Item Size: 8.5 * 3.6 * 1.4cm / 3.35 * 1.41 * 0.55in Item Weight: 26g / 0.92oz Package Size: 10 * 8 * 1.5cm / 3.94 * 3.15 * 0.59in Package Weight: 65g / 2.3oz Package List: 1 * Stem Mount 2 * Hexagon Wrench 1 * Hexagon Screw Note: Bike computers are NOT included. Package List: 1 * Stem Mount 2 * Hexagon Wrench 1 * Hexagon Screw Note: Bike computers are NOT included.