Adhesive included, Please see last 3 pictures to find the adhesive pads. Best quality copper heat-sink available! 8PCS Lot Copper Computer Xbox360 PS DDR RAM Memory Cooler Heat Sink Heatsink Item Description100% Brand New & High QualityMade of pure copper.NOTE: This product is electric conductive metal, Please make make sure to apply only in clear areas with no DIODEs of Fuses to avoid electric damage! .You will need 3M double face tape Or you can buy from our store thermal glue to help stick these to the chips ParametersSize:13mm*11.5mm*5mmWeight:5g/pcsPackage Includes1 pack heatsink(include 8 pcs)