HSU Aluminum Bike Bicycle Handlebar Mount and Curved Extension Arm Kit360 Degree Rotation: Rotatable gopro bicycle handlebar mount allows 360 degree rotation (30 degrees rotation) for your shooting from different angles, meet your all around shooting requirement Easily Installing: The Handlebar Mount can be installed on to any round or semi round tube 0. 9 1. 3(22mm 34mm) All Aluminum Alloy Curved Extension Arm Kit: 3 x aluminum alloy extension arms of different lengths ( 7. 9 5. 3 3" ) + 3 x aluminum alloy screws + 1 x