Effective blackout solution
This was much easier to install than the static cling alternative and more effective than curtains since it covers the whole window and reflects more light. My picture shows regular blackout curtains on the left and this product on the right - covering the smaller window. Just covering the two small windows in that room helped cool it down a bit.My only problem was not being able to iron out the creases but that didn't affect it anyway since I pulled it right when sticking it to the dots on the wall. It would have been a bit easier to measure precisely if I could have made it totally flat but that didn't seem worth taking off a star, especially since it maybe possible but I was too nervous to increase the heat on my iron past the very low "synthetics" setting.I was impressed by how easy it was to cut without damaging this very thin fabric. It didn't fray at all when I used scissors, exacto knife, or a sliding paper cutter.The dots are very sticky but I was able to reposition the one that I accidentally put on the painted wall in the wrong place (without damage to wall or loss of adhesive power). The Velcro also sticks to each other very tight and seems to be high quality. I have not tried using the other adhesive dots yet.