This window door seal strip equably foamed by EPDM, with strong resilience after extrusion, good for collision avoidance; great for preventing wind, dust, sound, cold, protecting the window and door, and reducing the abrasion and noise effectively on window/door while open and close. The EPDM won't harden crack or freeze, even at 40 below zero. The seal strip comes with adhesive, and it can be cropped according to your actual doors and windows size, widely used in all kinds of sliding door, sliding window, closet door, security door and etc, reduce damage of your doors and windows.