Good Effect of Blackout & Heat Insulation: The 100% blackout curtains are made of 180D polyester oxford fabric. The silver side reflects the UV rays of the sun, lowering the temperature in the room. The black side can create a dark room like the middle of the night. This portable blackout blind is perfect for people who work at night and rest during the day. High-Temperature Resistance & No Odor: The high-quality shade material will not produce any unpleasant smell even after a whole day of sun exposure. The included round double-sided tape can withstand up to 122°F (50°C). Temporary blackout curtains can also be safely used to chase away the sun on hot summer days. Good Stickiness of Reusable Adhesive: Compared with the suction cups that fix the blackout curtain, the adhesive has better stickiness and will not let the blackout curtain fall off easily. This glue can be used repeatedly as long as it is kept clean during use. At the same time, they will not leave traces of glue or damage the surface of the object to be pasted. Cut Easily with Large size: This is a 57''x118''（145cmx300cm） portable blackout shade. The large usable area can meet the needs of various windows. You can tailor it to the shape of the window, such as arched, triangular, etc. Portable Storage Bag: Comes with a black pouch that can carry temporary blackout blinds everywhere. Whether you're renting or traveling, they can accompany you for a long time. These shades can also be used in skylights, RVs, bedrooms, nurseries, and more for anyone who is sensitive to light.