Our portable blackout shades for windows effectively block out the sunt, reducing interior heat and creating a cool and comfortable environment.Product Specification:Product name: portable blackout shades for windows Product material: polyvinyl chloride (PVC)Product colour: Black/ColoredPackage include: roller blind+suction cupBlackout roller blinds are suitable for various types of windows, and can be used in various scenes such as offices, cars, kitchens, bedrooms, living rooms, bathrooms, balconies, skylights, etc. It can be installed in various glass or smooth on the surface.Features：The portable sunshade can block most of the sun and heat, effectively reduce the outside heat and noise, provide you with privacy protection, keep the indoor cool and comfortable, and can effectively protect your furniture from direct sunlightPortable roll-up shade design for easy storage. Easy to use, comes with a buckle to hold the suction cups. Can also be used for car shades and travelThe fabric is waterproof, dust- free, and easy to care for, which needs to be wiped with water in the daily cleaning kind.Notice:1.Before cling the suction cup, better to clean the glass or smooth surface.2.Evacuate the air in the suction cup to achieve better adsorption effect.3.Do not overstretch the roller shutter to avoid affecting rebound or causing the suction cup to fall off.4.Prolonged exposure to sunlight may affect the service life of suction cups, please replace them promptly.