CHAIR 21.5″ WIDE X 18″ DEEP WITH FRONT WATERFALL CONTOUR SEAT AND 3″ THICK HIGH RESILENT DENSITY FOAM. FLC HEIGHT ADJUSTMENT LEVER, BACK TILT LEVER, SEAT TILT LEVER, BACK HEIGHT, SEAT TILT TENSION WHEEL SEAT RANGE 17″-22″. PLASTIC NYLON BASE W/DRAG CHAIN.