Abstract: An adjustable foot of a piece of furniture or support, having an adjusting arrangement formed from an internal adjusting part and a sleeve element displaceably mounted on the internal adjusting part. With a simple structure, a multiple variability of the foot of a piece of furniture or support is possible when the sleeve element is configured as a connector element, the outer surface of which is adapted to the internal diameter of an external profile for insertion into the external profile and has an abutment, on which the external profile is supported in the inserted position.