Enough quantity meets the demand: Each packaging includes 4 magnetic ventilation holes; this can that you install enough hoods or to keep the appropriate temperature control of multiple rooms in multiple rooms The universal size can be customized: these magnetic register cover design size is 10 x 10 inches (about 25.4 x 25.4 cm), which can be suitable for most ventilated ports, RV ventilation ports, family inlet, air inlets, floor, walls, or ceiling ventilationEra, you can easily trim the size to meet your needs; this can seamless and safely cover the size of ventilation ports without complex modification Reliable materials bring the maximum efficiency: the square magnetic ventilation hole cover provides durability and , can withstand daily use, and continues to play the best functions over time;Stick firmly on the ventilation to that they will not slide or drop, and provide safe and stable coverage Control ventilation and block noise: Our home ceiling square ventilation holes can be used to prevent cold air from entering the ventilation port, help to keep the room insulation, and block the noise between the ventilation ports;Just Gala to the ventilation port; Note: Before ordering, make sure that your ventilation port is made of magnetic material or it will not stick. Improving the comfort of any occasion: These magnetic wall ventilation holes cover the airflow by covering the ventilation of the ventilation to prevent the air flow from the waste of the room or the waste of air conditioning, and allow you to restart the air of your home, which helps to maintain a uniform and comfortable temperature;They are practical and convenient for commercial and residential environment Features: Aesthetics: The square magnetic vent cover is designed to blend with the vent, providing a clean, unobtrusive look. It can be perfectly installed on air vents to enhance the aesthetic appeal of the room, making it a functional decoration for your house or office. Versatile and easy to decorate: Not only are the vent cover walls easy to resize, they can also be decorated to match your decor. They can be easily painted or wallpapered and blend perfectly with the aesthetics of the room. This gives you the freedom to fully integrate them into your decor without interrupting your chosen theme. Specification: Material: PVC color: White Dimensions: 10 x 10 inches Package Contents: 1 Set x Magnetic Vent Covers(4pcs) 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.