Arbeitsstuhl

The invention relates to a modular workchair comprising a steel foot and a seat and backrest connected via a seat column to an integrated height adjusting device, whereby at least one spacer (3,4, 23) for the purposes of adjusting the height to a specific workplace is arranged between the steel foot (2) and the height adjusting device (5) and comprising at least one adapter (9) arranged at or below the seat (6) or at another suitable location for attaching various function elements and markings attached to adjusting components in the form of numbers, letters, colours, notches or similar to visualize adjustment values.