Polyetser window zebra blinds, rainbow blinds, also called gentle gauze shade, originates in South Korea, and now it is very popular in the world. The feature of rainbow blinds is double fabric, one is the material like polyester, ramie, nylon, the other one is yarn. Double layer fabrics can adjust light and stereo sense is strong though it won't occupy much aspace. The light penetrated in the indoor is soft and comfortable. When the blinds was close completely it can ensure a private space.