Solid pine and engineered hardwood frame with reinforced joinery. All wood is kiln dried to prevent warping. Solid rubberwood legs (removable). Webbed seat and back support. Seat cushions have fiber-wrapped, high-resiliency polyurethane foam cores. Seat firmness: Medium. On a scale from 1 to 5 (5 being firmest), it's a 3. Back cushions are fiber filled. This contract-grade item is manufactured to meet the demands of commercial use in addition to residential. See more. Made in China. U.S. Patent Number: D899795.