Adjusts to fit nearly any standard or sliding door Dual Draft Stopper will help you to instantly insulate your windows and doors! Keep the warm air inside during winter and keep the cool air in during summer. This amazing money saving device will adjust to fit nearly any door in your home, simply just slide it under your door to keep your house temperature comfortable. Keep your home comfortable and save money on heating and cooling with the Dual Draft Stopper by Trademark Tools. Foam and nylon construction. Adjusts to fit nearly any standard or sliding door. Simply slides on....