Bamboo Viscose Actual blind width is 26.5 inches. For an inside mount, fits windows 27 inches wide CORDLESS WINDOW SHADES: Woven 1/4 in. and 3/8 in. alternating driftwood flatstick bamboo slats provide light filtering and semi-private window treatment to your home, cottage, lake or beach house BEST FOR KIDS: Certified as Best for Kids, a window covering program created by an independent lab that includes only cordless shades that are safe for kids BAMBOO SHADE: WHY BAMBOO? If you like bamboo sheets, bamboo pillows, bamboo cutting boards, why not try bamboo blinds? LIGHT FILTERING: This is not a privacy shade, light gently streams through this tightly woven bamboo blind, providing semi-privacy and energy-efficient insulation qualities PRE-CUT SIZES: The width of this bamboo shade includes a 1/2 inch deduction (window industry standard) from the option size you select. For an inside mount, order the shade width that matches the width of the window in which the shade will be hung. For an outside mount, order 1/2 inch wider than the overall area to be covered