【100% Blackout & Thermal Insulation】 Made from thick 420D Oxford fabric with blackout coating, these portable blackout blinds block sunlight, UV rays and glare effectively. Help create a completely dark environment for better sleep while providing thermal insulation to reduce heat loss in winter and keep rooms cooler in summer. 【Cut to Any Size & Fits Any Window Shape】 Each blackout blind measures 300×145cm and can be freely cut to fit different types of windows such as rectangles, skylights, caravans, or odd-shaped windows. To enhance light blocking, cut the blackout fabric slightly larger than the window frame. 【 No-Drill Installation with Hook & Loop】 Comes with 60 hook & loop pairs for tool-free and damage-free installation. Simply measure, cut and stick the blackout blind onto clean window frames. Strong adhesion keeps the temporary blackout blinds securely in place without leaving marks. 【 Waterproof, Durable & Energy Saving】 High-density 420D Oxford fabric is waterproof, tear-resistant and reusable. Helps reduce indoor heat transfer, improving energy efficiency and saving on heating or cooling bills. Perfect for bedrooms, nurseries, RV, lofts and travel. 【 Foldable & Travel-Friendly】 Lightweight and easy to carry. Ideal as travel blackout blinds for hotel, campervan or temporary use. Folds compactly for storage without occupying space.