ITEM NAME:10Pcs Aluminum 20X20X6Mm Ic Led Cooling Cooler Heatsink Heatsinks With Tape OZ SEH20x20x6 with Sony T4000 high thermal conductivity adhesive tape. Designed for applications with airflow traveling in a single direction, these heat sinks are suitable for a variety of standard square IC packages, LED and so on. Heatsink are available with pre-applied thermal tape for easy attachment to the IC, epoxy attach models are also available. Versatile and compact design. Easy to install. Size:20x20x6mm(LxWxH). Superior heat-conductive adhesive tape(included). Just peel off the backing paper of tape, you can use the item..SEH20x20x6 with Sony T4000 high thermal conductivity adhesive tape. Superior heat-conductive adhesive tape(included). Just peel off the backing paper of tape, you can use the item.