Arm support (12) for an armrest (10), comprising a frame (19) that comprises connectors for the fixed or moveable attachment to a structure, in particular to a structure of a vehicle, wherein the frame comprises longitudinal bars (23, 24) and cross bars (21, 22) that are connected to one another with connectors (25, 26, 27, 28).
The particularity is that at least a first type of connector is provided that is connectable with at least one longitudinal bar (23, 24) selected from a set of longitudinal bars of different length, and/or with at least one cross bar (21, 22) selected from a set of cross bars of different length.