Globe Scientific's tube rollers allow for ensuring your samples remain mixed / suspended. A choice of analog for basic mixing or digital for the best repeatability in method give you the best option of choice. The offset pivot point on each roller adds an amplitude (rocking) motion in addition to the rolling motion for a large increase in the homogeneity of any sample or solution.
Note: All instruments and names of manufacturers mentioned herein are the trademarks of their respective companies and are used for reference purposes only. Globe Scientific Inc. expressly disclaims any affiliation to them.