Vortex Ink Shaker can mix most liquids in 5-10 seconds at 4,000 RPM. Liquids are swirled in a vortex, not shaken, for better results and no air bubbles. Lab quality construction Bottom suction cups Chemical corrosion-resistant plastic body Black rubber head Weighted zinc-alloy base Powerful 12 amp motor To use: Simply touch bottled liquid to the top of the machine and the vortex touch operation starts a circular mixing at 4,000 rpm. The vortex mixer’s smooth exterior and compact size make it easy to clean and store.