Hand-built frames with hand-finished upholstery. Engineered hardwood frame with mortise & tenon joinery. All wood is kiln-dried for added durability. Metal legs in your choice of finish. High-gauge sinuous springs provide cushion support. Seat cushion has double wrapped, high-resiliency polyurethane foam core. Back cushions are poly fiber filled. Cushions are reversible (Astor Velvet excluded). Seat firmness: Medium. On a scale from 1 to 5 (5 being firmest), it's a 3. Removable legs feature adjustable levelers to adapt to varying floor levels. Assembled in the USA. U.S. Patent Number: D965334.