I purchased these bamboo roman shades for a guest room to provide my guests with more privacy. They are completely see through and do not block the sun. It was too late to return these and my guests are still here. I was very disappointed with the quality of these shades as well. When I unrolled the first shade, there was a dollar symbol written on it (half way down the front) in permanent marker that I spent a half hour trying to sand off with little success (I was under the gun with time and couldn't return them, I had to make do). The second set of roman bamboo shades were chipped on the sides; another disappointment. I will never even think of purchasing any type of bamboo roman shades again.