Swivel casters are meant to make it easier for you to move and clean the salad station. Some stations will come with swivel casters pre-installed, although these tend to be the largest sized. If you purchase a station without swivel casters and later decide you might need them, they can be purchased and installed separately. Considering that they can make it easier to move even the heaviest of stations, we’d recommend going for an option with swivel casters; they will come in handy during cleaning.