【Total Blackout Material】The blackout blind is made of strong and soft high-density oxford fabric on one side, which can block 90% of sunlight and UV rays. The other side comes with a high-quality silver PU coating that reflects heat and regulates room temperature, creating a comfortable pitch-black sleeping atmosphere for you.【New Design Super Adhesive Tape】Our black out curtain lining comes with 45 Nano-Adhesive, which can stick the blind to the window faster and more firmly. It also feature an easy-peel and will not leave any stains on the windows. It can be reused and if the adhesive is not sticky after repeated use, just replaced a new one.