Upgraded 20 percent with magnetic vent covers, it can securely grip metal registers to prevent movement and sliding. Ideal ventilation deflectors for household flooring and RV vents The precision designed mesh vent filter can maintain good airflow and ventilation, making it very suitable for household floors and RV ventilation covers. Our vent covers for home floor provide a cleaner and healthier living environment without affecting air circulation These floor vent covers feature a reasonable mesh design to prevent small creatures from crawling out of the vent, giving you peace of mind. It also prevents small items such as jewelry, crayons, building blocks, snacks, toys, pet food, and coins from falling into the vent Simply place a air vent cover on the floor, tool free installation. Disassemble, rinse or vacuum, no need for troublesome maintenance. We can enjoy the convenience of cleaning ventilation adjustment filters, saving you time and effort The magnetic air vent covers prevent items from falling into the ventilation opening, protect pet safety, reduce dust and allergens, and improve air quality in the home or RV. Our lids provide peace of mind and promote a healthier living space by keeping the ventilation openings clean and debris free Specification:3PCS or 5PCS Colour:Black Material:rubber Package Contents: 3PCS x Air Conditioner Vent Cover or 5PCS x Air Conditioner Vent Cover 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.