Premium Material: The double-sided insulation roll is made of high-quality reflective aluminum film and polyethylene air bubble cushion, with a surface round hole design to increase reflectivity. The RV window insulation is durable and long-lasting, resistant to scratches. Temperature Protection: The reflective insulation roll reduces heat transfer for year-round comfort, while the reflective bubble sheet provides energy-saving, window insulation and privacy protection. Excellent Performance: The window insulation for summer has excellent waterproof performance, allowing worry-free outdoor use. It is easy to clean with a simple wipe. When not in use, it can be easily folded up for space-saving and convenient carrying. Wide Usage: Our insulation sheet is versatile and can be used for various spaces, including windows, RVs, roofs, garage doors, and more as a heat blocker. Easy Installation: The usage of the foil insulation roll is easy and convenient. Simply cut it to the desired size with a utility knife or scissors, then use the provided double-sided tape for easy installation.