Having looked for some blinds over internet for OPTILIGHT blinds; it was clear that these are not the most popular blinds and I had to take the risk of measuring the window frame and find the suitable match. With much anxiety I ordered the blinds and the delivery was made in time and a perfect condition. These blinds are amazing! I was so much impressed with the quality and ease of fitting. The blinds are total blackout, literally and help blocking out heat as well, so great in summers. Please see the pictures for the blackout quality. Thanks for the business, a great product.