Huntington Blackout Cordless Spring Roller Shade Blackout Linen Blended Fabric works with a wide array of home dcor styles Patented Deluxe Spring Roller Mechanism allows for smooth and precise height adustment. A huge upgrade from traditional snap roller shades. Energy Saving Child and Pet Safe Listed Width is for headrail -actual fabric width is 1 &3/8" narrower. 2 Inches of depth is required for inside mounting.