The Mainstay Sectional Middle, comprised of a pre-assembled base and two-piece cushion set, can be paired with other Mainstay Sectional pieces to create infinite arrangements, or used on its own. UV stable, moisture and mildew resistant Withstands outdoor environment swelling, splintering fading or warping Base crafted of a high-quality, UV20 rated resin, color stabilized for up to 20,000 hours of direct sunlight Crafted of high-quality, marine-grade outdoor fabrics and EZ-Dri foam core Easy strap and buckle system for securing cushions Endless reconfiguring possibilities using interlocking system Products shall be free from material defects, and shall not splinter, crack, chip, peel, or rot for two (2) years from the date of purchase for both commercial and residential use. Marine-grade solution-dyed acrylic fabrics are warranted against light fastness for a period of ten (10) years Always use a soft bristle brush or cloth when cleaning. Always use a soft terry cloth for cleaning fabric. Always wipe in small circular motions. For deep cleaning or spot cleaning fabric, use a mix of mild detergent and water along with a soft terry cloth. Always wipe in small circular motions.