Durable material: Bike handlebar extender is made of very strong aluminum alloy material, with hexagonal wrench, handlebar extender is very light, not easy to rust or fade, strong corrosion resistance, strong and durable. Increase space: Handlebar extension and hex wrench. It can be used for bicycle rod holders such as bicycle lights, speedometers, GPS devices, flashlights or smart phones. Compatibility: Double clamp bike bracket is suitable for handlebars of different diameters, and is compatible with most bicycles, mountain bikes, mountain bikes, racing cars, etc. And it can be installed on normal and largest handlebars. Handlebar protection design: There is a double-layer rubber pad on the inner side of the bike extension bracket mount ring, which can protect the handlebar from sliding or scratching. The double clamp for fixing can firmly fix the handlebar bracket. Easy to install: Use a hex wrench to fix a handlebar extension mount with a length of 20cm. Using an hex key can help you easily install and remove the extension bracket, which is easy to Ultra-lightweight, high-quality materials, portable and durable. The double clamps are fixed, which can greatly improve the safety during driving. Dual rubber pads can protect the handlebar from slipping or scratching the handlebar. Adjust the installation position and angle by own. Installation instructions 1. Remove the cover of the original bicycle handlebar 2. Remove the handlebar bracket 3. Install the bicycle steering tube, adjust the position and tighten the adjusting screw 4. Depending on the height, some seals must be raised 5. Install the handlebar base and fix the screws to the base 6. Assemble the cover of the bicycle steering tube extender Color: Black Diameter: 20mm. Weight: 0.15kg Package included: 10 x Bike Handlebar Extender with hex wrench