The Star ring is often chosen, when the roller, besides doing the normal roller-jobs, is also used for soil packing and seedbed preparation. The Star ring works very well in both light and sandy soil types as well as in heavy and og sticky soil types. When used for light soil types, the surface is left slightly packed and uneven, which prevents drifting soil. In sticky soil types, the rings' self-cleaning effect is of great importance. The Star ring furthermore has a great draining effect on grass fields as the points make little holes in the field.