1.[Thickened Silicone Material] The quality door insulation strip is made of environment-friendly material TPE, and will not ze or crack under extreme temperatures. Highly resilient and wear-resistant, will not damage your window and door., durable, and have a long life , to put around your front and back doors. For narrow gaps that let cold air in this is a good solution. 2.[Completely Barriering Air and Noise] The Multi-Functional Door Seal Strip is a flexible and good-quality strip. With this weather stripping you can completely seal the gaps, keep the room warm in winter and cool in summer, help to reduce energy consumption, and block the entry of noise, light, rain, dust, wind, leaves, snow, and odor, and no reptile will sneak in. 3.[Easy to Install]Self Adhesive, easy installation, simply remove the red film from the surface and install it, and the material is durable and effective in sealing large gaps. After installing this seal, not only does it cover the gap it also keeps the door firm when is closed. 4.[Wide Application]The door seal strip was easy to cut to size, and can be easily bent into any shape, easy to stick where it belonged, and ed a nice seal. It is widely used in various door seal and window insulation, sliding doors, sliding windows, interior doors, security doors, closet doors, etc.