. Fits around any bar from 1.5cm - 4cm in diameter\n. Securely attaches your camera housing to roll bars, roll cage bars, seatposts, bikes, boats, etc.\n. Compatible with all GoPro Hero13, Hero12, Hero11, Hero10, Hero9, Hero8, Hero7, Hero6, Hero5, Hero4, Hero3, Hero3+, Hero2, Session and other Action Cams with adapter supplied.\n. Compatible with most phones including iPhone, Samsung, Sony, Google etc (55mm - 86mm)\n. Compatible with most Compact Cameras using the 1/4\"" screw thread\n. Comes with 180 degree pivoting amount to allow for further adjustability, allowing you to get the angle you want\n. PREMIUM QUALITY -  Includes Action Camera Adapter & Phone Holder\n \nAttach your camera to roll bars, tubes and more. Fits 1.5cm - 4cm diameter tubes. Perfect for clamping your camera to the radiator cap (both metal and plastic caps) on karts.\nYou can also clamp to Car Roll cages, Roll bars, bike frames, bumper bars, ski/surfboard racks, or anything else that is in the sizer