The perfect window shade for any home or office! Our cordless window shade is a customizable roller shade that's pefect for any window. Out light-filtering shade is perfect for filtering unwanted light and cold air. Made of soft, micro-ridged vinyl that can easily be teared down and custmized to the desired width. Its telescopic roller has a cardboard insert underneath the vinyl fabric that is perfoated every 0.5". Each roller shade can be torn down to a maximum of 18" from its total size. Operating these cordless shades are totally easy! Simply raise or lower the handrail. Can be mounted inside or outside (detailed instructions included).