100% Blackout Blind: This no-drill blackout blind is made of high-quality, high-density Oxford fabric. One side of the window blind is a durable and soft black fabric that effectively absorbs heat and filters UV rays, while the other side is covered with high-quality, double-layer silver PU, which better reflects sunlight and regulates room temperature. The 100% dark room provides a stable sleeping environment. Easy Installation: The thermal insulating fabric comes with 16 pairs of durable hook-and-loop fasteners. The adhesive backing is easy to remove and leaves no residue on the windows. The sturdy and durable material is strong enough to support the weight of the blackout roller blind. No drilling is required, and it can be reused. Installation and removal take only a few minutes. The large DIY size of the blackout window blind is 200 x 148 cm. This extra-large size means you can cut the interior blackout blinds to the size and shape you need without drilling. It is recommended to leave 2-3 cm when cutting, which will perfectly cover the window edge and block out the sun. The heat-blocking blind fits perfectly on all window shapes (square, arched, round, conservatory roof, skylight). The blackout fabric comes with a storage bag, which can perfectly store the blackout fabric by the meter and other installation tools. Thanks to its wrinkle-resistant fabric, this skylight blind won't have noticeable creases after folding. It features a lightweight design and is made of environmentally friendly, odorless materials, so you can take this suction cup blackout blind with you on vacation or business trips. This drill-free blind is ideal for everyday use at home, in the office, nurseries, bedrooms, and even for travel in hotel rooms, rental apartments, and caravans. The blackout blind can also be used in both hot and cold weather to keep the room cool or warm.