A. Eliminate door and floor gaps: Dekor door and window sealing strips are designed to fill the gaps between doors and the floor, reducing the infiltration of light, air, dust, and rainwater through the door gaps. B. Save electricity costs: It protects the room from external factors and helps prevent the leakage of indoor hot and cold air in winter and summer, thus reducing electricity costs associated with frequent heating or cooling. C. Well - made: This practical gap sealing strip is in the form of a door strip, composed of an aluminum metal frame and nylon bristles. The nylon bristles are flexible and are less likely to crack or shrink in various indoor or outdoor environments. D. Easy to install: Measure the width of the door and mark it on the sealing strip. Use a handsaw to make a 90 - degree right - angle cut from the top to the bottom. Mark the positions of the holes, then fix the screws on the aluminum plate. Use pliers to seal the edges firmly. E. Upgraded design, long - lasting: The upgraded design of this draft - proof strip under the door serves as a good door insulation sealing strip that can offer all - season protection. Moreover, its simple design is both aesthetically pleasing and able to blend in with different indoor decorations, being practical and convenient.