MMRM Bicycle Bike Handlebar Extension Light Flashlight LED Lamp Holder Extender Mount Space Saver Black Fits on to your bike handle bars to add extra storage space for your bike lights, GPS or phone etc. Super light CNC Aluminium body with a carbon extender bar Fixed the column diameter 22.2mm the aluminum alloy material CNC turning process, a column using 3 k carbon fiber body, stent surface anode processing of color, used in bicycle fittings such as loading headlights spec, saves the handlebars Suitable for installation handlebar diameter 31.8mm (25.4 mm handlebar need to add gasket)