Twin Draft Guard Value Pack of 2, Blue Energy Saving Under Door Draft Stopper ENERGY-SAVING ESSENTIAL: Keep cold air out and heat in during those harsh winters with this set of two double-sided, insulating draft stoppers for under the doors and windows from Twin Draft Guard. The double-sided draft stoppers has a secure custom fit under your doors and windows to maximize the efficiency of heating and cooling your home. SET OF TWO DOOR/WINDOW DRAFT STOPPERS: Large gaps underneath your exterior doors can significantly impact your comfort during extreme temperatures. This set of two double-sided navy under door draft stoppers allow you to trap in the cold air during the summer and heat during the winter on multiple doors. EASY-TO-USE TOOL FOR HOMES AND BUSINESSES: These double-sided insulating door stoppers are versatile and perfect for both residential and commercial use. Simply utilize the patented hook and loop adjustable closure to maintain a secure fit that keeps your home  and your heating and cooling appliances  operating at an efficient level. VERSATILE UNIT: Minimize cold and hot air drafts from both your windows and doors when equipped with this set of two double-sided tools. The fabric draft stopper sleeve holds foam cylinders on opposite sides of a door and window to create a draft-proof, airtight seal. INSULATION YOU NEED: These easy-to-install door stoppers are flexible enough to use on any type of floor  including carpets, tile, linoleum and hardwoods and securely fits under doors up to 36 inches. Utilize these window and door stoppers in your main living areas, basements and garages.