VWR* Analog Vortex Mixer, 120V, 50/60Hz, Orbit: 4.9 mm, Speed: 300 to 3200 rpm, include a cup head, three-inch head with cover and a 72 (183cm), 3-wire cord and plug, variable analog speed control with continuous or touch mode operation, Two modes of operation
VWR* Wards Miniature Vortex Mixer, 115V, Cup Color: Red, Powerful vortexing for tubes up to 50mL, Miniature size - less than 4 inches wide, Smooth, quiet and efficient, grey cup head