Ecoolbuy 360 Rotatable Bike Handlebar Seatpost Ski Pole Mount for Gopro Hero 1 2 3 3 + Cam 100% Brand new and high quality 360 Degree Rotation and adjustable, Easy to install and remove Attach your GoPro camera to handlebars, seatposts, ski poles and more Compatible with ALL HD HERO Original + HD HERO2 Professional Cameras Fits any handlebars within diameter size range from 1.6mm to 3.9mm