This is the most durable porch swing you can find and this version comes with zinc plated chains. Perfect for your patio, garden, porch and sun room. Extreme comfort, fresh look and a uniquely sculptured back design, the Cozi-Back Collection has it all. It is made from poly resin, a recycled HDPE plastic that prevents bacterial growth, mildew and that is easy to maintain. This chair features no screws through top of arms and stainless steel hardware Zinc plated chains. As with all Berlin's outdoor furniture, it can withstand sand and salt water, it is UV stabilized to prevent fading from sunshine, it is maintenance free, will not crack, split or splinter. Comes in 18 original colors (12 solid and 6 two-tones).