Features:1. Aluminium body with a carbon extender bar(70mm long)2. Extended frame of bicycle handlebar extension3. Ultra light carbon fiber4. 35g of bracket of aluminum alloy material5. The whole CNC process6. Suitable for 31.8 caliber handlebar use7. Round small for the carbon fiber material 22.2MM diametersuitable for the installation of a variety of cycling equipment8. GUB G-229 Fits on to your handle bars to add extra storage space for your bike lights,flashlight,stopwatch,GPS or phone etc