Eliminate condensation, cold drafts and heat loss. A hairdryer shrinks the window insulator film to form a smooth, tight and transparent barrier against the weather. Double-sided tape securely holds the plastic film in place. The film lasts 15 months and completely breaks down in 24 months to help reduce the effect of single-use plastics. ### In the Box * 1 x Clear Shrink Film: 62 in. x 210 in. * 1 x Roll of Two-Sided Tape: 0.33 in. x 90 ft.