Features: 1. It is made of the high quality aluminum material with good heat dissipation and the texture is guaranteed. 2. With full-body aluminum alloy, the dense and strong protective film to protect the substrate from corrosion. 3. The specially designed size of this aluminum alloy case is perfect for Raspberry Pi 4B. 4. This CNC aluminum housing can protect your Pi safety, meanwhile, the open design ensures that our CNC enclosure does not affect WiFi signals. 5. It can be arbitrarily fixed, with smooth and meticulous surface, in a strict production process. Specification: Item Type: Aluminum alloy case Material: Aluminum alloy Color: Black, Silver, Gold(optional) Compatible with: For Raspberry Pi 4B Package List: 1x Shell 2x Cooling Pad 4x Screw 1x Hex Wrench 1、It is made of the high quality aluminum material with good heat dissipation and the texture is guaranteed. 2、With full-body aluminum alloy, the dense and strong protective film to protect the substrate from corrosion. 3、This CNC aluminum housing can protect your Pi safety,meanwhile,the open design ensures that our CNC enclosure does not affect Wifi signals. 4、The specially designed size of this aluminum alloy case is perfect for Raspberry Pi 4B. 5、It can be arbitrarily fixed, with smooth and meticulous surface, in a strict production process.