The Cordless 1-inch Blind provides room darkening and maximum privacy. It is made from heavyweight PVC engineered with additional slats and resists warping, fading and sagging. The modern style features a tilt wand and cordless lift. To Operate: Simply lift or lower bottom rail to raise or lower blind, control the amount of light by twisting the wand to open and close the slats. Hidden mounting brackets are designed for inside, outside or ceiling installation. All hardware and installation instructions are included. 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. Actual Slat size is 1 inch.