Polaroid Action Camera Suction Cup with 1/4"-20 and GoPro Adapter for GoPro Hero 4/3+/3 Compatibility: GoPro HERO4, 3+ and 3 Cameras Dimensions: 6.3 x 6.3 x 2" / 160.02 x 160.02 x 50.80mm Weight: 8.5oz / 240.97g