Achim Home Furnishings Cordless GII Morningstar 1" Light Filtering Mini Blind, 18" x 42", White, Width: 18inch, Length 42inch Drop No cords to tangle! Child & Pet Safe! No exposed lift cords Light filtering; 42 inch drop; Fashion headrail with Hidden brackets for easier installation Simply lift or lower bottom rail to raise and lower shade; tilt wand adjusts slats to control light and privacy All hardware and installation instructions are included; actual Slat size is 1 inch This blind will fit windows 3/8 (0.95 cm) smaller and  (1.27 cm) wider than stated size. This actual blind is   (1.27 cm) narrower/smaller than stated size