Elevating Cushion 15 x 15 x 4 Scales Physician Beam Heavy duty vinyl with Permablok 3(R) Cleansers Deoderants Heavy duty vinyl with Permablok 3(R) bacterial protection * 1´ Firm density foam tops * Radiused seamless corners on upholstered components * Top sections have welded steel support frames * Pivoting joints house hardened steel shoulder bolts with locking nuts to ensure years of trouble free operation * Footswitch control * Power assisted caster system (unless noted otherwise) * 110 volts 60Hz motor (220 volts 50 Hz available on special order) * 500 lb 10% more stretch Firm polyurethane foam * The added height elevates the sitter making it easy to get into and out of chairs without straining