Heat Insulating by Attaching to the Window GlassWindow Glass Insulation Sheet

Prevents condensation and improves heat retention

Creates a layer between window glass and the air inside a room, helping prevent heat transfer. Simply applying it to your windows improves your room's heating efficiency. The lineup consists of three types -- regular, long, and wide -- to fit the size of your windows. They are applied using water, so they stick firmly but come off cleanly.