These Single Column Table Legs and Bases from Hafele are designed to support peninsula table tops. The support legs and bases are made of epoxy-coated steel. The Single Column Support Leg is 114mm (4-1/2") in diameter and stands 27-1/2" high with + 3/5" of adjustment. The Single Column Table Base has an adjustable height of 690mm (27-1/4") to 850mm (33-1/2") and is 120mm (4-3/4") in diameter. The Disk Base can be added to the column base to increase table height and are stackable for further height adjustment.