HEAVY DUTY MAGNETIC VENT COVER, Perfect for RV, Home HVAC, AC And Furnace Vents, 8"x 15'' inches. (6 pack) 6 Pack Heavy Duty Magnetic Vent Covers (Each Measures: 8" x 15") Made in The USA! Fast Free Shipping! 100% SATISFACTION GUARANTEED! PRACTICAL- Use in your kitchen, bathroom, living room or any space you want to Keep warm in the winter by preventing cool air to come in through the vents, thereby helping to keep the room insulated. Also prevents the transmission of noise through your vents from outside the room! COST-EFFECTIVE- Lower your energy costs by not heating or cooling areas that are unused. Stop the air flow with a vent cover to redirect hot or cool air to other rooms. Flexible material magnetically forms a TIGHT SEAL around your vents on sidewall vents or floor vents to seal off airflow completely! EASY- Cuts easily with scissors to ensure a more custom fitting! Can be cut to perfect size, painted or wallpapered to match any decor! Please make sure that your register vent is made of metal so that it will attract magnet. For use on aluminum, painted surface, plastic, extremely thin steel or wood registers, we sell Self Adhesive Vent Covers as a better solution.