Wise 8WD155-R-B Replacement Back Cushion Swingback Seat Frame, White Wise 8WD155-R-B Swingback Frame Seat Replacement Back Cushion Replacement Back Cushion for Wise 8WD155P-784 Swingback Seat Frame Features Plastic Fabricated Frame with High Compression Foam Padding UV and Mildew Treated Marine Grade Vinyl 5 Year Warranty on Frame, 3 Year Warranty on Upholstery