Strong Adhesive: 2 pack in 1 package, extra strong adhesive won't peel off, stick firmly; Protect your doors for a long time; Do not open or close the doors within 24 hours after installation; Seals the door gap 0-1 inch Noise Reduction: The door bottom seal is designed with special structure to keep your room soundproof; Keep your room quiet, clean and a proper temperature Save Money & Energy: The most efficient solution to prevent heat and cold from escaping during winter and summer; Reduce your electric cost One Size Fits All Doors & Easy to Install: 1.7 inches wide by 39 inches long; Can be used on interior and exterior doors; Quick and easy installation in 2 minutes High-quality material: The practical gap seal is made of non-toxic, true material, color uniformity, the same inside and outside; resistant to heat and cold. Safe for children and pets: While other door bottom draft excluders use dangerous materials like glass, ours is made with high-quality silicone for added safety. Tips: 1. In cold weather, it is recommended to use a hair dryer to heat the draft excluder for 2 minutes before installing it. 2. The draft excluder may not work well on rough or textured doors. 3. After cleaning the door with water, make sure the surface is dry before installing it. 4. Avoid opening and closing the door within the first 24 hours.