WISEUP trade; New 3pcs Aluminum Stainless Thumb Knob Bolt Nut Screw Set for GoPro Hero 4 3+3 2 1 Durable and lightweight accessory set Easy to mount Gopro Hero to standard tripod or suction cup Compatible with GoPro Hero 4/3+/3/2/1 CNC Aluminum Stainless Made 3pcs one set