Item Type: Aluminum Alloy Project Box Material: Aluminum alloy Size: Approx. 53 x 116 x 130mm / 2.1 x 4.6 x 5.1in Color: Sandblasted oxidized black Product Specifications: Integrated Baffle Thickness: Approx. 1.25-1.5mm / 0.05-0.06in 1、SANDBLASTING OXIDATION: The surface of the shell has been finely sandblasted and oxidized, making the surface matte, more textured and more wear resistant.  2、GOOD SEALING: The casing has been tested for waterproof sealing, which can ensure the safety of your instrument even in harsh environments.  3、POWERFUL PERFORMANCE: The aluminum alloy shell is not only light, but also has good heat dissipation and signal shielding performance.  4、WIDE USAGE: The casing can be used as a power amplifier casing, a circuit board casing, a decoder casing, and an industrial equipment casing.  5、EASY TO INSTALL: You only need to use screws to easily assemble the casing, and the installation is also very convenient, giving you a good experience.