describe Shading and heat insulation: The silver coating and black shading surface of the blackout roller blind can effectively block sunlight and ultraviolet rays, and reduce indoor heat. They provide powerful blackout and privacy protection, create a comfortable dark sleeping environment and improve sleep quality. No drilling: Self-adhesive, which can be removed without leaving any adhesive residue, which is easier to use than a suction cup. Make sure the blackout fabric stays on your windows for a long time, it can also be removed and stuck on other windows that need to be darkened. If the tape loses its adhesive strength after repeated use, it can be replaced with a new one. Wide range of applications: 4 sizes of oversized sunroof shades can be cut freely. It can be used at home, in hotels, in offices and even in caravans. Blackout cloth sold by the meter for windows of any size and shape. Lightweight, portable and ready to use, no drilling required, thick oxford cloth blackout blinds are a better choice than blackout film. Shipping Quantity: 1 pieces Package Contents: Only the above package content, other products are not included. (Reminder: The size is measured by hand, please allow 1-2cm measurement error) Colour: Black (Due to different monitors and lighting effects, the actual product color may be slightly different from the picture color) .Items from Sheng Xinshun's shop