1、Aluminum Alloy: Made of aluminum alloy, the extension bracket is lighter in texture, and the surface is oxidized, which is corrosion resistant, bright in color, and more durable. 2、Easy to Install: Equipped with a inner hex wrench and durable turnbuckle, the extension clamp can be easily and quickly assembled on the bicycle, and it can also be disassembled and adjusted. 3、Protective Gasket: This handlebar extension bracket is equipped with a protective gasket, and used in conjunction with the extender, it is not easy to slide and scratch your bicycle, providing double protection. 4、Space Saving: Bike handlebar extender mounts to the handlebars very securely and gives plenty of room for speedometer, headlightlight, flashlight, phone, bell, GPS and more. 5、Applicable Handlebar Size: The handlebar extender is suitable for different handlebar diameters, suitable for 31.8mm handlebar width (with small anti skid leather), and suitable for 25.4mm handlebar width (with large anti skid leather). Item Type: Bike Handlebar Extension Bracket Material: Aluminum Alloy Product Color: Black Extension Bracket Total Length: 9.5cm / 3.7in Large Ring Diameter: Approx. 3.3cm / 1.3in Small Ring Diameter: Approx. 2.2cm / 0.9in Extension Bracket Thickness: Approx. 0.85cm / 0.3in Round Tube Diameter: Approx. 2.22cm / 0.9in Round Tube Length: Approx. 10.2cm / 4.0in Product Weight: Approx. 50g / 1.8oz Product Application: Suitable for 25.4mm / 1.0in and 31.8mm / 1.3in Handlebars 1 x Bicycle Extension Bracket 1 x Hex Screwdriver 1 x Bicycle Extension Tube