Features： 1、[ALUMINUM ALLOY] Made of aluminum alloy material, lightweight, with good heat dissipation and signal shielding performance. 2、[GOOD SEALING] The aluminum box has good waterproof sealing performance, and can be used in harsh environments. 3、[SCREW MOUNTING] Equipped with screws, and the built in grooves for better installation, easy to use and carry. 4、[WIDE APPLICATIONS] Can be used as power amplifier shell, circuit board shell, decoder shell, industrial equipment shell, etc. 5、[SANDBLASTED TREAT] The surface is sandblasted and oxidized, with good corrosion resistance and high texture. Specification： Item Type: Aluminum Alloy Project Box Color: Matte Black Material: 6063-T5 industrial extruded aluminum alloy profile Product Size: Approx. 22 x 74 x 110mm / 0.9 x 2.9 x 4.3in (there is a slight error in manual measurement) Aluminum Box Thickness: Between 1.25-1.5mm Product Structure: Integrated Application: Can be used for heat dissipation aluminum shell of electronic products, PCB wiring aluminum box, thunder protection aluminum shell, DIY, etc. Package List： 1 x Main Aluminum Shell 2 x Plates 8 x Screws