Welcome to the store! STARKT LIM Door Seal: Extra strong adhesive that won't peel off, securely attaches, protecting your doors for a long time. Please DO NOT open or close doors within the first 24 hours after installation. SOUND REDUCTION: The door's bottom seal is designed with a special structure, keeping your room soundproof. Maintain a quiet, clean, and suitable temperature in your space. SAVE MONEY AND ENERGY: The most efficient solution to prevent heat and cold from escaping during winter and summer. Reduce electricity costs ONE SIZE FITS ALL DOORS AND EASY TO INSTALL Size: 1.9 B x 39\" L, Compatible with both interior and exterior doors. Quick and simple installation within 2 minutes. HIGH QUALITY MATERIAL: Practical door seal made of pure silicone, non-toxic. Genuine material, uniform color, same front and back; Heat and cold resistant. Your satisfaction is our highest priority. We will provide you with the best service. If you encounter any issues after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately for the best solution!