Features： 1、[MULTIPLE USAGES] Often used as power amplifier housing, circuit board housing, decoder housing, industrial equipment housing, etc. 2、[ALUMINUM ALLOY] Made of aluminum alloy, light in weight, with good heat dissipation and signal shielding performance. 3、[SANDBLASTING TREAT] The enclosure surface is sandblasted and oxidized, which is corrosion resistant and has high texture. 4、[SCREW MOUNTING] Simple screw assembly, and built in groove for better installation of objects, easy to use and carry. 5、[GOOD SEALING] The box has good waterproof sealing performance, and can be used in harsh environments. Specification： Item Type: Aluminum Alloy Project Box Color: Matte Silver Material: 6063-T5 industrial extruded aluminum alloy profile Product Size: Approx. 27 x 131 x 130mm / 1.1 x 5.2 x 5.1in (there is a slight error in manual measurement) Aluminum Box Thickness: Between 1.25-1.5mm Product Structure: Split Type Application: Can be used for heat dissipation aluminum shell of electronic products, PCB wiring aluminum box, thunder protection aluminum shell, DIY, etc. Package List： 2 x Main Aluminum Shell 2 x Boards 8 x Screws