Tab guide cable system maintains even lateral tension to hold surface flat while custom slat bar with added weight maintains vertical tension.Screen surface retracts completely into the case for a clean, modern appearance when screen is not in use.Standard with built in Low Voltage Control and Decora style 3 button wall switch.Standard with Silent Motor in sizes up to 10' x 10'.An optional choice of seven veneer finishes are also available for the front cover of the screen case for a warm, elegant look.Veneers from left to right (top row) Honey Maple, Medium Oak, Heritage Walnut, Mahogany, (bottom row) Light Oak, Natural Walnut, Cherry. Cases covers with Honey Maple, Light Oak and Medium Oak finishes come standard with white base and end caps. Cherry, Mahogany, Natural Walnut and Heritage Walnut cases covers come with black base and end caps.