Now I will introduce this solid and beautiful aluminium alloy shell to you, perfect matching with raspberry pi 2/2B/3. Whole box has a metal texture, but only just 80g, it will turn your raspberry pi into a mini-computer chassis. 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!