Polywood® Shutters are superior in product innovation, serving as the nation's category leader in plantation shutters, as they are exclusively engineered and custom crafted in the USA with a durable recyclable wood substitute. They are also the most optimal window treatment in achieving energy-efficiency, as each panel is insulated with a signature patented weather stripping.Moisture proof Fire resistant Termite proof Sea salt resistant UL Tested UV Stabilized 70% more energy efficient than wood shutters 1600% more energy efficient than aluminum blinds Earth-friendly: Made from recyclable wood substitute Made in the USA Lined with exclusively patented weather stripping for optimal window insulation Available in any specialty shape window including arches, octagons, circles, angles, sunbursts, rakes, etc. 3 louver sizes- 2.5, 3.5, 4.5 Smooth or wood grain (emboss avail on louver only) 3 colors: white, off white, snow white 9 frame options Standard tilt rod or hidden tilt rod Lifetime warranty (all manufacturer defects & paint finish) Won’t warp, split, or chip Cordless Window Treatment Optimal Light & Sound Control Wipe with damp cloth Curb appeal and home equity