The OHAUS portfolio of open-air and incubating shakers includes rocking models designed to aid in clinical applications, including sample preparation. Featuring one- and two-tier models to accommodate any workload, the two-tier option allows users in high-throughput laboratories to increase capacity without sacrificing bench space. With a motion suitable for mixing blood tubes in clinical applications, a dimpled mat works to keep vacutainer blood tubes secure while the control panel allows for simple setting of speed, time, and tilt angle, even while the unit is running.