Seat cushions 5.5 inches thick, with an S-shaped spring inside each one, are what separate this set of four from ordinary upholstered dining chairs. Soft sponge fill provides the give, the spring provides the support, and breathable polyester fabric keeps the surface pleasant through a family gathering. A 100 percent rubber wood frame is warp resistant and splinter free, anti-slip pads protect floors, and the wide seat with a curved back handles ergonomics. Each chair measures 18 by 24 by 32 inches with a 20 inch seat height and holds 330 pounds. Assembly required.