Features Lightweight Aluminum Alloy: Constructed from aluminum alloy, this project box offers a lightweight design, ensuring easy handling and portability, while providing fast heat dissipation and excellent signal shielding performance. Superior Waterproof ing: The aluminum box features reliable waterproof ing, making it suitable for use in harsh environments, ensuring protection for your electronic components. Convenient Installation: Equipped with screws and built-in grooves, this enclosure offers easy installation, providing convenience and security for your circuit board or electronic components. Durable Sandblasted Surface: The sandblasted and oxidized surface of the aluminum box delivers high corrosion resistance, adding texture and durability to the enclosure, ensuring long-lasting protection for your electronics. Versatile Applications: This enclosure is suitable for a wide range of applications including power amplifier, circuit board, decoder, and industrial equipment, offering versatility for various electronic projects. Specification: Item Type: Aluminum Alloy Project Box Color: Matte Black Material: 6063-T5 industrial extruded aluminum alloy profile Product Size: Approx. 25 x 40 x 80mm / 1 x 1.6 x 3.1in(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 Aluminum Shell(Large and Small) 2 x Boards 8 x Screws Note: Please allow 1‑3mm error for manual measurement. Package List 2 x Aluminum Shell(Large and Small) 2 x Boards 8 x Screws