This insulation kit includes window insulation film and a 1/2-inch-by-27-7/10-yard roll of double-sided mounting tape. The film provides a transparent, wrinkle-free fit, reducing condensation and preventing frost build-up. It is suitable for aluminum, vinyl-clad, or painted and varnished wood molding. The price drops from $25.99 to $7.80. Shipping is free for Prime members or on orders over $35.