Features: Make of aluminum alloys, strong & light weight. Easily install belows the handlebars to hoists camera or headlight. Also as a strong rack to mount belows computer stand. Specifically designs for road bike drop handlebars, with 2 preset mounting hole for quick setups. Well cut interfaces for smooth plugs joint and easily to tighten. Specifications: Component: Aluminum alloys Style: 1/2/3 Size: about 61x24x15cmm/2.4x0.94x0.59inch Package Includes: 1Pc Bracket/1Pc Bracket with Screw Tool/1Pc Bracket with Aluminum Alloys Joint note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.