Brand BZ Model BZ66 Quantity 1 piece(s) Material Plastic + stainless steel Color Black Type Gadget Function The Gopro camera mounting rail rail is suitable for all kinds of diameter of 3.5cm~6.35cm Power Supply N/A Working Current N/A Other Features A motorcycle frame bumper ski / board frame or any other applicable range of horizontal bar; Compatible with all Gopro Hero3 Hero2 HD Hero original camera; Portable weighing about 980G digital products testing can endure 160km/ high speed after the emergency stop; Can be directly connected to the GoPro machine the positioning is more convenient accurate more than the official GoPro accessories; The bayonet lock with high strength plastic pad with extended stainless steel lock screw lock is firm Packing List 1 x Large diameter 1 x Long screw support