Dual layers day night roller blinds 1.one layer is perspective,the ... made of aluminium Dual layers day night roller blinds 1.Double layers window blinds for day and night are a two in one ... the daytime, and a privacy black out shade for night. This allows a warm filtering of light to enter ... your home during the day, and lets you relax in absolute privacy at night-time. 2.Double Roller blinds ...