Blackout curtain set: black roller blinds, no drilling required, complimentary assembly equipment. The blinds are easy to install, no drilling required, and provide good light blocking effect for a comfortable sleeping environment HIGH QUALITY MATERIAL: Our window roller blinds are made of high quality polyester fibre, which is highly wrinkle-resistant and stable, and won't wrinkle even after long time use. The no-drill clamping window roller blinds also have good UV , which can effectively block the sunlight and reduce the indoor temperature and light conditions EASY INSTALLATION: The blinds are equipped with multiple magnets so they can be used multiple times. Simply stick one rubber to the window frame and another to the window film. (Please pay attention to the direction of the magnets when sticking) SHADE AND HEAT INSULATION: The black roller shutter for windows for indoor use do not require drilling curtains, which can effectively block sunlight and UV and reduce indoor heat. The inner sunscreen window also provides a strong privacy blocking effect, creates a comfortable dark sleeping environment and improves the quality of sleep VERSATILE USE: Window blackout film can be cut to size as needed and can be used as a sunscreen in children's rooms, bedrooms, patio roofs, cars or tent trailers. They can effectively block sunlight, regulate room temperature or act as a sunscreen, Weight: 0.661386786 Pounds, Manufacturer: PIXZCSA