fresh Allergy Zone brand Magnetic filter seal

New set of 2 Filter locks each measures 13” long by approx 4.5” outside measurements. Magnets are about 1/2” around. Blocks Airborne allergens and pollutants, eliminates air leaks and saved energy. Reusable and installs in minutes. Improves performance of 1” air filters (seal furnace &ac filter slot to eliminate leaks. Energy Star recommends sealing filters. Package insert has tear in it. There is an online video you can scan or look up under allergy zone Filter Lock. outstanding for everyday use. superior materials and excellent craftsmanship ensure long-lasting durability.