"Designed to have the case installed during the ""rough-in"" stages of construction and the fabric assembly during the finish stage.Tab guide cable system maintains even lateral tension to hold surface flat while custom slat bar with added weight maintains vertical tension.Front projection surfaces standard with black backing for opacity.-Standard Silent Drive System:An enhanced drive mechanism to keep your screen whisper quiet. -Standard LVC:Integrated low voltage control to keep your screen operation flexible. -Smooth Roll Technology:A patent pending roller technology to keep your screen perfectly flat. -Slim-Tab:A lower profile, stronger tab design to keep your screen perfectly tensioned. -Simple Installation:A new Installation Kit and user-friendly packaging to keep you on schedule. -Support:A comprehensive five year warranty to keep you confident in your purchase."