This heat sink paste is made of , which can withstand use. Features the silicone grease material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. Features -Color: Black -Material: silicone grease -Size: 6.00X6.00X6.00cm/2.36X2.36X2.36in Thermal conductivity: 0.25 Celsius degree - /w Thermal conductivity: >4.8w/ Specific gravity: >2.5g/ Operating temperature: -50 °c to 120 Celsius degree - High thermal conductivity, high insulation, high temperature resistance, low oil content and non-corrosive. - Working principle: Fill the gap between the heating element and the cooling device; increase the contacting area to achieve the best heat conduction effect. - How to use: A small amount of silicone oil floating is normal. Please stir use. - Note: Keep the coating surface clean and apply directly with tools (such as scrapers, finger cots, etc.). - Special design and it is in fine craftsmanship. It is the best replacement for your old, broken one. Package list: 1 x silicone grease