Function: 1 . Aluminum alloy material, lighter texture, surface after oxidation treatment, corrosion resistance, bright color, more durable. 2. Double fastening is more secure, each bracket has two fastening screws, more secure. 3. Equipped with a quick-install wrench, the expansion bracket can be installed in less than a minute. 4. Cycling is a healthy and natural way to do sports tourism, but more attention should be paid to safety, with more emergency equipment, lights, horn etc. 5. The steering wheel extension frame will not affect the normal operation, the steering wheel extension frame to break the limitations of the steering wheel space, can clamp the lamp holder / mobile phone bracket / code meter / horn and so on. Specification: Item Type: Bicycle Handlebar Extension Bracket Black color Material: alloy aluminum Weight: approx. 128g / 4.5oz Size: Handlebar Tube Length: Approx. 30cm / 11.8in Diameter: Approx. 22.2 mm / 0.9 inch Suitable for: Approx. 22.2-31.8 mm / 0.87-1.25 inch handlebars Package List: 1 x handlebar tube; 2 x mounting frame 1 x key