1/2" (13 mm) thick, solid, white colored, black core phenolic seat. Frame, mounting bracket and retainer hook are type 304 satin finished stainless steel. Requires only one hand operation to manually lower to horizontal position for use or raise for departure and arrival. Retainer bracket with heavy wire detent prevents seat from dropping. Seat measures 15" (387 mm) wide and projects 33-3/4" (860 mm) from wall.