501-49 has round legs. The obvius advantage of a round tube used as a table leg is that the visual impression does not change with the viewer angle. In an open office envirinment, a whole forest of table legs will quicly arise. Here, a round tube will appear more simple in the expression.The round columns are designed with a double telescopic mechanism which allows more overlap between the tubes, resulting in improved travel and stability.
A square tabletop with all known advantages: Flexible and uncomplicated. A centered 60mm grommet is standard. Probably just as expected.