Horizon Boat Seat Premium Series 55" Pontoon Bench Seat Cushion w/2 BasesThe Horizon Boat Seat Premium Series 55" Pontoon Bench Seat Cushion w/2 Bases is built for comfort and durability. Crafted with injection molded, high impact plastic frames, high-density foam padding, and 28oz marine grade, mildew resistant & UV treated vinyl, this bench seat cushion offers reliable support and long-lasting performance for pontoon seating.