【100% Window Blackout】One side of the blackout blind is made of high-density black Oxford fabric, which can effectively absorb heat and filter UV rays. The other side of the blackout blinds is made of a high-quality double-layer silver PU coating, which can better reflect sunlight and regulate room temperature, creating a 100% dark room and providing you with a stable sleeping environment. 【No Drilling Required Blackout Roller Blind】The blackout fabric come with 12 reusable rectangular hook-and-loop fasteners and 18 pieces of strong adhesive film to ensure no light leaks from the edge of the window frame. No additional accessories are required, simplifying the installation process and allowing you to enjoy the convenience and long-lasting performance of blackout film without having to drill holes. 【Free Cutting】The size of the blackout blinds stick on is 100 x 145 cm. You can easily cut the temporary blackout blind to any desired size and shape. Using the included tape measure and scissors, you can easily cut to size and ensure that the blackout blind fits perfectly in the window frame. 【Easy to Install and Remove】The black out blinds stick on are easy to install. Simply measure the window, cut the film to the correct size with sharp scissors or a utility knife, apply the adhesive and suction strips, and stick the blackout blind to the window. The adhesive is easy to remove and leaves no marks on the window. 【Widely Used】This black blinds is suitable for a variety of locations such as bedrooms, bathrooms, children's rooms, study rooms, offices, RVs, etc., creating a peaceful and comfortable private environment for you. Whether you are traveling with family or friends, our portable blackout blind are your convenient choice.