Just stick it on the window frame! This insulation tape for window sashes is perfect for preventing condensation. It's easy to use, with a width of 3cm and a length of 3.6m. Effectively prevent condensation, which tends to occur due to high humidity and temperature differences between indoors and outdoors, for a comfortable life! - Size: 3cm wide, 3.6m long - Application: Insulation tape for window frames - Material: Foamed polyethylene