PROFESSIONAL DRAFT STOPPER: The door Insulation Strip can prevent the air conditioning or heating air in the house from being lost from under the door, thus improving the heating and cooling efficiency of the house HIGH-QUALITY MATERIAL: Self-adhesive under-door draft excluder, made of safe and non-toxic silicone material, better temperature resistance and sealing performance than rubber can effectively block the penetration of liquids or gases. 3M Super Door Adhesive and Peeler are suitable for most materials and easy to cut EASY TO INSTALL: You can cut the door seal strip to the size you need according to the size of the door, very flexible and won't damage the floor. Very durable and long life MULTIFUNCTIONAL: The bottom of door seal has excellent performance in soundproof and waterproof, which can reduce external noise up to 5 times; prevent dust and insects from entering the room; help you sleep better and enjoy a comfortable and clean home environment MORE OPTIONS: Two sizes (1.72" and 2") and four colors (black, white, brown, and gray) of front door weather stripping are available for you to choose from. Choose a door barrier strip that matches the color of the door to make your home look more harmonious and beautiful WARM SUGGESTION: Before installing the door draft stopper, it is best to use a hair dryer to heat up the adhesive so that it will stick more firmly. Do not open and close the door frequently for the first 12 hours after installation. Do not stick too close to the door, you can extend the use time.he first 12 hours after installation. Do not stick too close to the door, you can extend the use time