The Fisherbrand Analog Vortex Mixer (Model 02215414) is a reliable and straightforward laboratory instrument designed for mixing small vials of liquids efficiently. Its analog speed control knob offers precise speed adjustments from 1 to 10, providing flexible operation suitable for multiple mixing needs. The compact build is suited for both professional and academic lab environments where consistent vortexing is essential. Equipped with a sturdy and ergonomic design, this mixer ensures stability during use. Ideal for routine laboratory applications, it is a durable and cost-effective solution for liquid sample mixing.