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 fifth image shows a photo of it installed on my home window. It's a little short for my window, but I think it's 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 drawn. 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