3 in 1 Cooling Heatsink Aluminium Heat Sink Pad Shims for Raspberry Pi 3 / 2\t \t\t \t \t \t\t\t\t \t\t\t\t ()
2. It dissipates heat off your Raspberry Pi in high efficiency, improving its performance.
3. The cooling heatsink have special stickers affixed, just tear off the paper, easy to install.