Cushion Rigidizer InvacareĀ® Supply Group "Lightweight, plastic molded insert has six convex troughs for exceptional strength. Attach to bottom of cushion and reinsert cushion back into seat cover. Slim (1/8) thickness adds virtually no height to cushion. Can be trimmed to 14D for shallower seats. (3/4) lb. Other sizes available by special order. 16W x 16D " $21.55 Click Here to Order Now
