STRONG ADHESIVE door draft stopper , extra strong adhesive non-degumming, stick firmly, Protect your doors long time. Please DO NOT open and close the doors within after installed. NOISE REDUCTION : The door bottom seal designed by special structural , keep your room soundproof.Keep your room quietly, clean, Suitable temperature. SAVE MONEY AND ENERGYThe most efficient solution to prevent the heat and cold from escaping during winter and summer. Reduce electric cost ONE SIZE FIT ALL DOOR AND EASY TO INSTALLSize: 1.9 W x 39" L , Can be used on interior and exterior doors. Fast and easy to install within 2 minutes. HIGH QUALITY MATERIAL :Practical gap sealer is made of Pure Silicone, non-toxic. True material, homogeneity of color, the same interior and exterior; Heat and cold resistant.