ITEM NAME:Aluminum Alloy Protective Case CNC Enclosure Metal Shell Fit for Raspberry B8H2 Aluminum Alloy Protective Case CNC Enclosure Metal Shell Fit for Raspberry B8H2 Ultra-thin design - Only 14 mm thick. Passive cooling structure design - can achieve the heat sink support, heat sink CPU and memory. Machining accuracy of CNC machine tools, Precise process and accurate hole position, sandblasting anodizing process. high quality , durable, Suitable For Raspberry Pi 4B+ SM. color: Blue Size: approx.8.7*5.6*1.87cm/3.43*2.2*0.74inch Material: Aluminum alloy Package Contents: 1 * Shell kit 1 * screwdriver kit