AlUMINUM REFLECTIVE INSULATION ROLL SIZE: 48''(W) x 10Ft (L), Easy to cut that can cater to all your home or RV window sizes, sturdy and lightweight. Easy Install With Adhesive Adop PREMIUM MATERIAL:Window sun blocker is made of double side alumium foil and air bubble layer. The surface circle design can improve the heat reflectivity for sun protection, garege insulation kit, heat insulation TEMPETURE PROTECTION: Double aluminum foil and bubble layer has good sealing performance,window insulation for summer heat to stay cool in summer, avoid heat loss to stops winter cold,protect privacy WIDE APPLICATION:Summer use Windows to block UV rays can insulate, RV window coverings, winter use to keep heat inside, use windows, attics, garage doors, walls, floor,around fireplaces, radiator reflector,etc BRAND PROMISE:AGHITG hope your life will be more better because of our products. We are committed to providing customers with the best product experience WARM TIPS:Due to transportation restrictions,the thermal insulation film is folded in the package, there may be some creases,it will not affect the use of your use.If you have any questions, please feel free to contact us, we will always provide free service.