The cheapest shell for raspberry pi 3/2B/2, it’s green and made of plastic. And you don’t need to open the shell when you want to use the GPIO. The box has enough space for you to install the heat sink, even in the bottom of the box are deliberately left out of the two vents for heat dissipation. Nice choice for your raspberry pi 3/2B/2! The more economical
Raspberry Pi 3 case.