Feature:1. The shell is suitable for Raspberry Pi 4 Model B, with protection and heat dissipation functions.2. Made of ABS material, which is hard and scratch resistant, not easy to deform after long term use.3. There are multiple holes under the bottom cover to facilitate uniform and efficient heat dissipation.4. The heat dissipation enclosure has a standard size, which can perfectly fit for Raspberry Pi motherboard.5. The kit comes with 4 non slip rubber pads for easy fixing of the protective shell and more convenient use.Specification:Item Type: Enclosure for Raspberry PiMaterial: ABSApplication: For Raspberry Pi 4 Model B.Package List:1 x Enclosure4 x Screws4 x Non Slip PadsNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.