This Climaloc® white u-shaped door sweep is 36" long and 3/4" high. It can be used with both wooden and steal doors and contains a 100% natural bug killer that is safe for your kids and pets. This door sweep adheres to the bottom edge of the door to seal that game and keep the heat within your home. It has some pre-drilled slotted holes for easy installation and includes the screws needed for installation.