Adjustment only happens if it is easy. These hinged knobs go onto Therafin slotted seat brackets so a support can be moved by hand, with no spanner needed and no loose hardware to drop on the floor.
The hinge folds the knob flat once it is tight, which keeps a clean line along the seat frame and stops clothing catching on a protruding handle. They are made from anodised black aluminium and come as a pair, so both sides of a mount can be converted at once.
Handy for growing children whose seating changes often, and for group homes where support workers make small changes between clinic visits.
