Premium Material This highquality aluminum paint coated film increases the intensity and spreads light more evenly; Both sides of the mylar film can improves the reflectivity to 95, making sure the efficient use of light Ideal Size This 4ft. x 100ft. reflective film is big enough to cover all of your demands, such as covering the outdoor grow room; You also could cut the film into different sizes to fit your other purposes Easy to Clean Our reflective mylar film is thermostable and durable against tearing, making it ideal for longterm use. Its also waterguarded, allowing you to easily wipe off any dirt Sustainable Usage When you dont need the film, just roll the film up for sustainable use; Have no worries of getting dirty, you can use the sealing cover, which is included in the package, to wrap the film up to keep it clean Wild Applications Our highly reflective film could be wildly applied to different occasions, both indoor and outdoor, like grow room for plants, grow tent; Also could be used to wrap paper, home decorations