A connector device is provided that permits two separately stored ingredients to be mixed in and dispensed from the same container. The armrest is displaceable from a pushed-back position between the front seats in the direction of the dashboard into a front position, wherein the support part is mounted pivotably on the basic body. The cap layer preferably has a lattice parameter close to that in the underlying substrate, and different from that in the lattice mismatched layer in no strain state. A position adjustment mechanism is provided for locking the foot supports in desired positions relative to the frame.