1、The cooling enclosure has a reasonable structure, with large heat dissipation area and good cooling effect. 2、Made of aluminum alloy material, wear and corrosion resistant, and not easily deformed for a long time. 3、The heat dissipation enclosure is suitable for Raspberry Pi 4 B Model, with suitable ports and slots. 4、With reasonable holes design, can be perfectly matched with the for Raspberry Pi without affecting the use. 5、Equipped with fasteners such as screws and wrench, easy to install and disassemble, the structure is stable and not easy to fall apart. 2 x Enclosures4 x Stickers4 x Screws1 x Wrench Item Type: Enclosure for Raspberry PiMaterial: Aluminum alloyApplication: Suitable for Raspberry 4 B ModelProduct Size: Approx. 87 x 56 x 25mm / 3.4 x 2.2 x 1in