Tube rocker is one of the most utilized tools for the laboratory. L-TTR100 is a heavy duty, almost silent mixer designed for years of everyday use. It has a capacity of 8 tubes or mix of tubes and vials with a speed of 25 rocking cycles per minute. The tube pad is reversible and autoclavable.. Heavy duty and silent mixer. 8 tube capacity. 25 rocking cycles per minute speed. Reversible and autoclavable pad. . UNICO L-TTR100 Model Rock-IT Jr. Tube Rocker with Pause Button, 8 Tubes/Vials Capacity, 25 cpm, 110V. L-TTR100. Country of Origin : United States.