Thank you for viewing! Smart Energy-Saving Measures Maximum temperature difference: 4.8°C [Product Details] Material: Polyethylene (PE) Brand: User Color: Gray (White Snow Pattern) The 6th image shows a photo of it installed on a window at home. Although the size is a little short for my house's window, I think it will be effective for preventing mold on the curtains and providing insulation because it's placed between the window and the curtains. I also like that it's difficult to see inside from the outside even when the curtains are open and only the lace curtains are used. Product Size: Approximately 91 cm length x 90 cm width (2 sheets) Materials: Main body/PET film, foamed polyethylene, Eyelets/Iron, Mounting parts/PP tape, PP