Material: PET Color: as the picture shows Package weight: 53.1g Size: 30x100cm (11.8x39.4inch) Our One-way Window Film Provides A Effect By Light During The Day, Which Can Shield Your Seclusion While Giving You A Great One-way View. (black Opaque) Our One-way Window Film Provides A Effect By Light During The Day, Which Can Shield Your Seclusion While Giving You A Great One-way View. (black Opaque) Thermal Window Films Retain Heat In Winter And Keep It Out In Summer. It Will Make You Have A Comfortable Environment Indoors. On Expensive Conditioning And Heating Bills With A Easy Membrane. This Reflective Seclusion Window Film Can Be Installed On Any Flat, Clean, Glass Surface, For Balcony, Kitchen, Office, Living Room, Office Building, Etc. When The Indoor Light Is Than The Outdoor, Such As When The Lights In Here Are Opened, The Effect Will Be Reversed. So The Outside Can See The Inside. Remember To Close The Curtains At Night.