Elevating Cushion 15 x 15 x 4 Lumbar Cushions Quiet magnetic bi directional resistance system 14804 Quiet magnetic bi directional resistance system Designed to easily fold to save space *Unit is only 10 wide when folded *Height adjustable from 28 to 41 *Fixed width dimension of 25 *1 ´ diameter stainless steel handrails for easy use and durability *Heavy gauge steel base plates uprights and fittings *Black powder coated chip and wear resistant finish *Each upright telescopes up in 1 ´ increments and locks into (10) height positions with fail safe ball tip locking pin *Weight Capacity: 400 lbs Firm polyurethane foam * The added height elevates the sitter making it easy to get into and out of chairs without straining