During the cold weather months, windows become a prime spot for energy loss. Duck Brand heavy-duty window kits create an added barrier between the outdoor air and your home's inside, helping block drafts and air leaks that lead to high heating costs. Made with puncture-resistant film that is stronger than standard window kits, these kits are great for high-traffic or pet-friendly households. Plus, it's made with clear shrink film for good visibility and it's easy-to install and remove once the warmer weather arrives. Use together with other Duck Brand weatherization products to make your home more comfortable and energy efficient all year long.