1.[High-quality materials]The blackout roller blind fabric is made of environmentally friendly materials, which is r to use. It uses blackout fabric to achieve thermal insulated, which can effectively block UV protection and prevent furniture and floors from fading. 2.[Safe Cordless Design]The cordless roller shades have a neat appearance and are r for and pets. Our spring system has been tested many times, the cordless spring system is and easy to pull down, it can stay in any position to meet your different needs for brightness and light. 3.[Easy to install and clean]The window blinds is easy to install and can be installed outside or inside the window frame. The top is equipped with a unique aluminum alloy shell, which is easy to store and not easy to fall dust. The curtain is easy to clean and can be cleaned by wiping with a damp towel. 4.[Multi-purpose scene use] The overall appearance design is simple, and the overall color of the top valance and the curtain is unified, which can match any decoration style. It can be used well in scenes such as living room, bedroom, study, bathroom, etc.