Excellent Stability: Zalman STC 7 effective thermal conductivity allows heat from CPU or any computer chips to cool down and very safe as there is no electrical conductivity. Measuring Graduations for convenience: Scale marking on the syringe allows accurate and visual measurement of the content while using or reusing the product. Optimum Viscosity: Particle size technology provides optimal filler density to conveniently use on any type of computer chips. East to use and store: Syringe type which is easy to use and rubber-cap prevents liquid content from being hardened over a period of time when reused Outstanding Durability and cooling performance: STC 7 can fill up space between the heatsink and CPU to maximize cooling performance & RoHS Certified