Features ALUMINUM ALLOY: Made of aluminum alloy material, lightweight, with good heat dissipation and signal shielding performance. GOOD SEALING: The junction box is an integrated design, with good sealing, can be used in harsh environments. SCREW MOUNTING: Simple screw installation, and the built in grooves for better installation, easy to use and carry. SANDBLASTING TREAT: Surface sandblasting and oxidation treatment to improve corrosion resistance and high texture. MULTIPLE USAGES: Can be used as power amplifier housing, circuit board housing, decoder housing, industrial equipment housing, etc. Specification: Item Type: Aluminum Alloy Project Box Color: Matte Black Material: 6063-T5 industrial extruded aluminum alloy profile Product Size: Approx. 53 x 116 x 130mm / 2.1 x 4.6 x 5.1in (there is a slight error in manual measurement) Aluminum Box Thickness: Between 1.25-1.5mm Product Structure: Integrated Product Use: 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 Shell2 x Plates8 x Screws Note:Please allow 1‑3mm error for manual measurement. Package List 1 x Main Aluminum Shell 2 x Plates 8 x Screws