Heatsinks are designed to draw heat away from the device they are stuck to, allowing their much larger surface area to dissipate the heat into the air more efficiently. This two piece heatsink kit can be used with the Raspberry Pi 3B+ or other ICs to help keep them cool.

The Anodized Blue heatsink measures 9 x 9mm and stands 12.2mm tall. The copper colored heatsink measures 13 x 12mm and 5.2mm tall. Both heatsinks include adhesive thermal tape on the back to help keep them in place.