uxcell Aluminum Radiator Heat Sink Heatsink 20mm x 20mm x 10mm 5 Pcs Black Adhesive thermal tape backing. Widely use for computer PC chipset, power IC, power electric device, etc. Use heatsink adhesive glue to install heatsink .Glue is not included here. Please check the specification table and make sure that the size of the heatsink fits that of your component. Comfortable and easy to use.