VWR* Tube holder, Roto mini plus, Includes tube holders for common tube sizes, Available with variable speed control and advanced shaking/mixing modes including mix (oscillating), Pause, and Rock, Fixed speed, Voltage identification: 220 V
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