Description: The mini blinds (1 inch) no drilling aluminum for windows are easy to install. With the plastic tilt rod, the slats rotate 180 degrees to control light, block UV rays and provide privacy in any room. The improved materials are very good for home use, workplace, etc. Mounting types: When installing blinds, a deduction of approx. 1 cm to fit properly into the window frame. A minimum frame depth of 2.4 inches is required for interior mounting for secure installation. Dimensions for internal mounting: Step 1. Measure the inner frame width in 3 places: top, middle and bottom. Note the smallest of the 3 measurements and subtract 1 cm as the individual width before ordering. Step 2. Measure the height in 3 places: the left, middle and right side. Write down the smallest of the 3 measurements and use the number as your individual height when ordering. Type: Horizontal Blinds, Mini Blinds Features: light filtering. Material: Aluminum Alloy Installation: No drilling required. -