Cracks and gaps around windows and doors can cause drafts to come into your home, leading to high heating and cooling costs. Self-adhesive Duck® Brand Heavy-Duty Weatherstrip Seals are made with durable and flexible material, allowing them to stand up against extreme temperatures that cause other seals to freeze or crack. They are a great solution for replacing old or worn door and window weather stripping seals, forming a barrier against the outdoor air, as well as dust, pollen and insects during the warmer months. Use together with other Duck® Brand weatherization products to make your home more comfortable and energy efficient all year long.