Ledge Lounger LL-MS-S-M-SC-STD-4630 Cadet Grey Mainstay Sectional Middle Seat Cushion, comprised of a pre-assembled base and three-piece cushion set, can be paired with other Mainstay Sectional pieces to create infinite arrangements, or used on its own. The Mainstay Sectional is modular, unique, and completely customizable. Featuring high-quality materials such as UV20 resistant resin and marine-grade fabrics, the Mainstay Sectional is designed to withstand the sun, wind, and elements of any outdoor environment.