The unit is meant for quick and thorough mixing of liquids in test tubes, small flasks, or bottles. The mixer consists of an enamel-finished housing containing the motor with an eccentric drive to a rubber buffer on the top. The tube is held against the vibrating buffer and the intensity of agitation is controlled by varying the position in which the tube is held. The thyristorised speed controller enables adjustment of the degree of oscillations. The unit is also provided with a separate adaptor for using it as a mini shaker for small tubes. The adaptor can accommodate 6 tubes of 0.4 ml, 6 tubes of 0.5 ml, and 6 tubes of 1.5 ml. RPM 1500. Also , available in ABS molded housing with polyurethane Coating mounted on steel base.