Roll Bar Mount compatible with GoPro cameras & 3-Way Pivot Arm Fits around any bar from 1.4" to 2.5" (3.5cm - 6.35cm) in diameter Securely attaches camera housing to Roll Bars, ATV's, roll cages, boats, etc. Captures point-of-view perspective from vehicle Comes with pivoting arms to allow for 3-way adjustability, allowing you to get the angle you want