My lab’s tube rotator broke recently and we needed to get a new one. Didn’t realize that even a small panel model goes for >$120, so figured we might as well upgrade to a larger one. We’ve used LAB FISH for other lab equipment before, and this product certainly works well. Can easily rotate 15-50mL tubes, adjust the rotating rate and direction, and set a run timer. It is long, so make sure it will fit wherever you plan to use it (in our case, in our 37°C incubator). It would be nice if there was a way to make the length adjustable (different size rotor arms, retractable base), or interchange the rotor rod for other tube layouts (more 50mL ones would be nice), but for the current product, it suits all our lab needs well enough.