Wise BM11010 Premier Series Pontoon Traditional Helm Seat. Constructed with an extremely durable Roto-Molded, high impact marine grade frame, compression foam padding and Heavy Duty 28 oz. marine grade vinyl, that withstands the effects of sun, heat, rain and soiling under normal marine environment conditions. Bucket seat includes a universal mounting plate to mount on any BIA standard pedestal or seat slide system. Perfect color and style match with other Premier Series Pontoon seating components. SEAT DIMENSIONS Height: 20.5", Width: 22.25", Depth: 26.75", Seated Width: 17.5", Seated Depth: 17.5"