Olefin Outdoor Cushions: Set includes 1 seat cushion for comfortable replacement of 1 dining chair or swivel rocker in Hanover's Tradition's collection Weather-Resistant: The special all-weather olefin fabric covering the cushions is made to withstand the elements and is resistant to stains, moisture, and UV rays for many seasons of outdoor enjoyment Durable and Comfortable: Plush, comfortable foam is wrapped in high quality fabric so you can be sure the cushions are made to last in any weather conditions Easy to Clean: Simply give the cushions a rinse with water when they need to be refreshed or use a mild detergent to spot clean tougher spots and keep them looking new Seat Cushion Dimensions: 20" L x 22.2" W x 2.8" H