[UPGRADE DESIGN] The heavy duty garage door weatherproofing universal sealing strip, with 10 insulation round layers and brush strip. It can effectively reduce external noise, isolate heat/cold, and make your garage quiet and warm..[COMPLETE GARAGE DOOR SEALS KITS] You will receive 5 x aluminum T tracks (3.3 ft each), 1 x universal garage door Weatherstrip, includes 50 screws. The rubber strip and brush strip fit perfectly with the aluminum tracks and you can easily complete the installation..[HIGH-QUALITY ALUMINUM & NATURAL RUBBER] The aluminum guide rail is strong enough to avoid deformation caused by collision, and the surface is specially treated to prevent rust in contact with water. U-shaped + O ring weather stripping rubber material and bursh strip are soft, which can better block external dust and rain and snow. (Stays good from -40° to 140°).[FLEXIBLE ADJUSTMENT] This set is suitable for most garage door bottoms, such as steel or wooden door bottoms. This product is longer than most American home garage doors, in order to ensure that it is long enough for remodeling projects. You can cut off the excess according to the applicable length..[DUZZY SATISFACTION SERVICE] We are a professional silicone PVC manufacturer, dedicated to researching garage door seals. Any issues or needs please feel free to contact us, we will solve the problem within 12 hours.