HON BBX36P Single Column Cast Iron Base, 36w x 36d x 27-7/8h, Black Sturdy cast iron construction with 3" diameter column. Four-prong design provides more legroom. Self-adjusting leveling glides compensate for uneven floors. Top and Base sold and shipped separatelyORDER BOTH. MADE IN THE USA: When you buy HON, youre buying quality furniture thats more than a practical solution youre buying proudly American-built office furniture, backed by a lifetime warranty and network of dealers.