The Vornado Mini Vortex Mixer from Health Care Logistics can rapidly vortex samples, including nearly full 50 mL tubes, using a 4 mm orbit and fixed speed of 2800 rpm. The unit delivers power within a compact footprint, measuring less than 4 inches square. lnsta-Touch operation means the motor is automatically activated with slight pressure on the center cup head. When pressure is removed, the unit quickly stops. Designed for smooth, quiet, and efficient operation, the unit’s head stops liquids from entering the housing and helps prolong the unit’s motor life. The mixer is available in 5 cup head colors: gray, blue, red, green, and purple.