Knife-edge, fiber back pillow with welt, Accent throw pillows available for an additional charge, Concealed swivel base in Lava finish, Recommended throw pillow size is 20"x20", Specifications subject to change without notice, Exteriors Plush seat cushion, Outdoor performance fabric, Open weave with flat rope in Grey Flannel finish over powder-coated aluminum frame, Exterior grade materials, Protective cover available for an additional charge