Abstract: The base assembly is removably received in a hollow end portion of a column which is used to support such things as handles of umbrellas, flag poles or legs of chairs and tables. The assembly includes a plug which is received in the end portion and which has a number of longitudinally extending cavities formed in it. The upper portions of a number of legs are received in the cavities and a plate is bolted to the plug for holding the leg portions in place. Instead of a plug the assembly can have upper and lower plates which are spaced apart from one another. The upper leg portions are received in openings in the plates and are held in place by means of a leg-retaining plate which is bolted to the first two plates.