The Thermo Scientific compact MaxiMix I Vortex Mixer allows uniform and quick mixing with its touch-on mode. It is optimal for enzymatic and RIA assays., biochemical assays, general test tube mixing, precipitated assays, viral dilutions preparations, tissue sample mixing and cell suspension vortexing. It works with multiple or single use tips and small, closed-top flasks.The Thermo Scientific compact MaxiMix I Vortex Mixer can mix up to four test tubes at one time. It comes standard with a durable white plastic case that is resistant to alkalis and acids. It has aluminum base which has suction cup rubber feet to offer optimal stability.