Powerful magnetic seal: Through our unparalleled stability through our ventilation mouth cover, the solid magnetic PVC framework can be firmly grasped to firmly grasp the 4x10-inch metal register.Our cover design is used firmly on any to that the ventilation port is protected without continuous adjustment. Optimized ventilation and anti-crusher: Our innovative network eye design can not only prevent small objects and creatures from entering the ventilation port, but also maintain good air circulation, keep your space fresh without affecting protection. Disabled installation, easy to clean: Just it lightly to easily connect the magnetic cover to the ventilation port without tools.In order to maintain, just disassemble, rinse or vacuum vacuum cleaners to keep the ventilation clean and efficient. Elegant design and materials: Made of high-quality materials, smooth and black , our ventilation holes cover is and fashionable., anti-fading, seamlessly matched with home decoration. The