Sphere Stands - Clear Plastic Rings (United States) - These are Clear Plastic Rings from the United States that are made especially to hold spheres for display. The mini size rings will support small and medium size spheres from 5/8" up to 1-1/2". The small size rings will support medium spheres (but the medium spheres look proportionately better on the mini rings) and the small rings will best support large spheres from 1-1/2" - 2". The medium size rings support extra large and jumbo spheres from 2" - 3". These are a perfect solution to keep your spheres in place.