The unit runs forward on the track first; the arm then sets to the descent axis and the internal screw extends, lowering the shelf along an axis offset 15° from vertical. Shelf 130 is a plain flat platform. Basket 130A pivots at the access point. Both configurations run the identical assembly — moveable unit 110, arms 120 (a pair, one each side, each sprung at its pivot by torsion spring 112), shelf 130 or basket 130A, track 140. Only the anchorage changes: in the wall-mounted configuration the track is carried on mounting strip 170 at the top of the closet; in the ceiling-suspended configuration it hangs on drop hangers at a center or overhead position, with no wall required and access from either side. Drag the scrubber, or press Play, to run the cycle.