Door Bottom Seals, Door Sweep Soundproofing Weather Stripping, Under Door Draft Stopper for Doors and Windows Silicone Adhesive Strips (2" x 79") MATERIAL - Silicone materials smell free, with good flexibility, strong natural recovery, good aging resistance, more durable. ONE SIZE FITS MOST DOORS - Each door seal is 79" * 2" . It can seal gap of up to 11/10".Can be used on interior and exterior doors of all types.It also can be cut to different size according to your need. WIDEN BACKING - Use 1 inch widen backing, strong adhesive, non-deguming, ensure this weather proofing strip stick to your door completely afer 24 hours. You can use the pushpins to fix it more firmly if the door surface is not smooth. EASY INSTALLATION - Fast and easy installation within 2 minutes, you just clean the door and measure the gap, then apply to door leak EFFECTIVE SOUNDPROOFING DESIGN -- sealing strip adopts three layers design so that it has tripple soundproofing. The sound holes improve the effect of soundproofing by 60%