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 cushions have double wrapped, high-resiliency polyurethane foam core. Seat firmness: Medium. On a scale from 1 to 5 (5 being firmest), we rate it a 3. Back cushions are poly fiber filled. Loose cushions. Removable legs feature adjustable levelers to adapt to varying floor levels. Sectional pieces attach via alligator clips (included). Assembled in the USA.