If the back to your Swingback seat is worn out, treat yourself to a new one.This replacement seat back is designed to fit Wise Seating Swingback seat frame 8WD155P-784, which itself is designed to fit over 72-quart and 94-quart coolers. Seat back measures 40" wide x 10" high x 4 1/2" thick.Key FeaturesHeavy-duty 28 ounce marine-grade vinylComfortable compression foam paddingMildew resistantTreated for UV resistanceWhite