3 Year Transferable Warranty On All Boat Seat Upholstery. * Molded foam bolsters in the seat cushion and back rests provide unmatched comfort and support * Mounts to all pedestals and slider mounts. T-nuts are inserted into the bottom frame for mounting * No wood - Solid, 100% plastic frame construction with all stainless hardware * 30oz marine grade vinyl with double top stitching on stress points