OPENSESAME 3PCS Aluminum Thumb Knob Stainless Fasteners Bolts Nuts Screws for GoPro HD Hero 3+ 3 2 1----Red Packing list: 1x long screw;2 x short screws The thumb knob is precision made of high quality aluminum. Easy to mount Gopro Hero to standard tripod or suction cup. Compatibility: Gopro HD Hero 1/2/3/3+ Camera