Cracks and gaps around windows and doors are a leading cause in high-energy costs in your home throughout the year. These Extra Large Gap Self-Adhesive Duck Brand Foam Weatherstrip Seals are a great solution for sealing small gaps around doors and windows, forming a barrier against drafts and humidity, as well as dust, pollen and insects during warmer months. Use together with other Duck Brand weatherization products to make your home more comfortable and energy efficient all year long.