KEY DETAILS Engineered wood interior frame. All wood is kiln-dried for added durability. Metal legs and exterior frame in a Matte Black finish. Seat cushion has a fiber-wrapped, high-resiliency polyurethane foam core. Seat firmness: Medium. On a scale from 1 to 5 (5 being firmest), we rate it a 3. This contract-grade item is manufactured to meet the demands of commercial use in addition to residential. See more . U.S. Patent D1100529. Made in China. How to measure for delivery