This shaker will perform a variety of laboratory tasks using attachments listed under 79125 series. Speed can be adjusted from 50 to 2400 RPM. The drive imparts a 0.120 inch circular motion. The drive mechanism is counter-balanced and the unit is mounted on rubber feet to prevent creeping. Overall: 8.2W x 10.9D x 7 inches high. For 110V, 50/60 Hz.