AGPtek Universal Gun Fishing Rod Bow Arrow Clamp Mount Fixed Clip for GoPro Hero 4 3+ 3 2 1 Fits 0.4" to 0.9" (10mm to 23mm) diameter fishing rod grips and bow components Can be mounted one or two cameras to capture footage looking forward, backwards or both directions simultaneously Compatible for GoPro Hero 4 3+ 3 2 1 Camera A perfect partner for outdoor and adventure shooting pictures