Package Contents: Our set includes not only high-quality thermal window cover but also four 2mm x 5m double-sided tapes. Whether you're a DIY enthusiast or a beginner, you can easily install secondary glazing kit for windows and enjoy instant comfort and energy savings. High-Quality pe Material: Window insulation film is made of premium pe, making it durable and unbreakable. It's watertight and reusable, yet also weather- and tear-resistant. Secondary glazing film effectively blocks heat transfer from the outside while maintaining a stable indoor temperature, ensuring a warm, warm year-round experience. Sufficient Size: Each roll of window film insulation measures 1.8m x 10m, making it suitable for most window sizes. Whether it's a large living room window or a small bedroom window, weatherproofing window insulation kits fits perfectly, leaving no blind spots and ensuring every corner is fully protected. Heat-Insulation and Dust-Proof: This window insulation film is specifically designed to improve a home's energy efficiency, reducing the workload of the air conditioner or heater by reducing the exchange of hot and cold air. It also effectively blocks dust from entering the home, keeping your home cleaner and more hygienic. Wide Range of Applications: In addition to home use, window heat insulation is also ideal for public spaces like offices and schools. Whether it's for summer sun protection or winter warmth, thermal window film is the ideal choice. Its easy and quick installation and long-lasting durability make it an indispensable tool for improving your quality of life.