The cordless retraction mechanism makes it easy to open and close the window shade evenly.Easily installed in 10 minutes with all hardware parts included. We also will verify with your all order information especially the measurements before processing you order to make sure the shade will fit you window perfectly..Using only the highest-quality bamboo, we aim to craft blinds and roll-up shades that will look beautiful, while providing your home with your desired amount of shade. With a number of different size from 12-96inch on width and 28-118inch on height and color options, you'll be able to find the perfect fit for any space in your home, office, or business. We work tirelessly to provide our customers with shades that can match any event or mood while being eye-catching and aesthetically pleasing..Please choose the customize shade via below steps: STEP 1: Select your pattern. STEP 2: Hit the "customize now" button on the right side to fill out your customize measurements. STEP 3: Choose inside or outside mount..STEP 4: Select your custom size. For inside mount give us the exact inside opening size(Window and trim) to the 1/8th of an inch and we will take a 3/8 deduction.you need at least 1-3/4"depth for inside mount. 1-1/4"depth may work with solid wood frames using one row of bracket holes. For an outside mount,pls add 3-5inch extra buffer for width and length so it fully cover the window and trim..STEP 5: Pick the blackout liner or no blackout liner. STEP 6: Add to chart.