Draft Stopper Door Guard Energy Saver Doorstop – Keep the outside air out and the inside air in with this easy and effective Draft Stopper Door Guard Energy Saver Doorstop. This double-sided insulated draft guard creates an air-tight, draft-proof seal. Works on both doors and windows to block wind, dust, and even pesky insects. The fabric sleeve holds customizable foam cylinders to ensure a perfect fit in even your draftiest space. Works on any floor, even carpets, to insulate living areas, garages and basements. Helps your home’s heating and cooling run more efficiently, saving you money. Measures approximately 38” inches long.