The tesamoll window insulation film Thermo Cover is transparent and is ideal for all older and single-glazed windows. Thanks to a heat-insulating air cushion, the window film stops the cold and significantly reduces the formation of condensation on the window. The insulating effect is similar to an additional pane of glass. Thermo Cover can be easily installed by quickly and easily sticking the insulating film on the inside of the window using the enclosed double-sided adhesive tape. Processing tip: The warm air from a hairdryer can be used to smooth and stretch the insulating film tightly.