Our magnetic vent screen covers provide peace of mind by preventing small objects like jewelry, bricks, and pet foods from falling down the air ducts in your home. The fiberglass mesh ensures unbeatable ventilation performance, with only a 1% block rate. This heavy-duty mesh effectively catches debris while promoting optimal airflow, leading to long-term savings on utility bills. Our vent screen covers keep bugs, spiders, and other insects from entering your home through air ducts, particularly in bedrooms where comfort and cleanliness are . Enhance Your Home's Air Quality with 2-Pack 4inch x 10inch Magnetic Vent Screen Covers - Perfect for Air Conditioning Improvement and Floor Register Deflection. Colour: Black Material: Rubber Package Contents: 1set * vent catcher mesh Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.