StarTech.com 20g Tube CPU Thermal Paste Grease Compound for Heatsinks. Thermal conductivity: 1.066 W/m·K, Product colour: White, Thermal resistance: 0.195 °C/W. Width: 72 mm, Depth: 18 mm, Height: 18 mm. Package width: 84 mm, Package depth: 152 mm, Package height: 23 mm