Black Aluminum Alloy Raspberry Pi 3 Model and Pi 2 Model B+ Case is sturdy enough with good ventilation. You just need to stick the fan to the case and click the different part together like the picture we show in our product page. NOTE1:Raspberry pi NOT included. NOTE2:Please use the double-side adhesive to stick the fan NOTE3:Insert the second and third from bottom in the front row Package List: 1x Black Raspberry Pi case for Raspberry Pi 3 Model and Pi 2 Model B+ 1x Cooling fan 1x Bag of screw

• Customize for Raspberry Pi 3 Model B and Pi 2 B+
• Aluminum Alloy made,Durable, never fade
• Good ventilation,easy carrying
• Simply Clicks Together Enclosure,Plug and Play Cooling Fan
• Access to Pi 3 Model B and Pi 2 B+ consumer ports and GSI, camera and GPIO connectors

Customize for Raspberry Pi 3 Model B and Pi 2 B+Funny DIY Expert