100% Blackout PVC Light Blocking Strips Window Shades Blinds Block Light Gaps

100% Blackout PVC Light Blocking Strips Window Shades Blinds Block Light Gaps These are silver/grey with a black backing. Cut at home: Keego Light blocking strips come in a range of lengths and can be trimmed to fit your windows size. Just cut them with sturdy kitchen scissors or a hacksaw. Standard size: 58.5" x 1.2" x 0.9". Made of light absorbing PVC plastic material. How the light blocker works? All window treatment must be made slightly smaller than the window opening to prevent rubbing on window frame when blackout shade is raised or lowered, so light may shine through. Light Blockers are an L-shaped piece of plastic that goes in front of or behind your window covering to block the part of the window that is not covered. Blocks 100% of light: Along sides of Blackout Window Blinds (Does not include shade)- Keego Light blocker prevent light gaps on blinds and windows. Stop the light from coming in through the sides of your Blackout Blinds & shades, ideal for office, media rooms, bedrooms, and wherever naps are taken. Easy to use: Just peel the sticky backing and stick to the side of your window. Light Blockers should be placed as close to the Blackout window shades as possible for maximum coverage. Works on cellular shades, honeycomb blinds, roller shades and blinds, roman shades and more.