Universal Camera Clamp Mount Set, Oumers Fixing Clip Mount Kit For Gun / Fishing Rod / Bow Fixing Clip, For GoPro Hero HD, Hero 4, Hero 3+, Hero 3, Hero 2, Hero 1, GoPro Camera Accessories Mount one or two cameras to capture footage looking forward, backwards or both directions simultaneously Can fixed Gopro to the guns, bows, arrows and so on Application: barrel, fishing rod and bows w/ diameter of 0.4 "to 0.9" (10mm to 23mm) Compatible with most fishing rod grips and bow components Compatible with all GoPro cameras, GoPro Hero5 Black, HERO 4 / 3+ / 3 / 2 / 1