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 Description
    • 100% Brand New & High Quality
    • Made 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 
      Parameters
      • Size:13mm*11.5mm*5mm
      • Weight:5g/pcs
          Package Includes

          1 pack heatsink(include 8 pcs)