Variable speed benchtop mixer (200-3,200 rpm) with a reversible head to accommodate a wide variety of sample containers. Use the cup side for single vessels like 15 and 50 mL conical centrifuge tubes, or the flat surface for an MTP or multiple tubes. Adjustable speed with a powerful motor for instant vortexing. On/Off switch for continuous operation or "touch to activate" mode. Balanced drive system minimizes noise and vibration. Compact size of 5.2" W x 6.7" D x 6.7" H fits on any benchtop or in a hood. Weight: 8.4 pounds.