Cylinder base easily attaches to 42" or 48" round tabletops of the HON Preside Cafe\/Commons Series. This series helps create open, flexible spaces where people can get together to eat, drink and be productive. Tabletop (sold separately) features a traditional edge, plywood core and durable, high-pressure laminate that is scratch-resistant, abrasion-resistant and easy to clean. Underside of top features an alignment guide for base placement. Round tabletop is sold separately. Base includes adjustable leveling glides to accommodate uneven floors.