Perfect Fit & Enhanced Airflow: 0.7" wider and 0.2" longer than standard 4"x10" covers, ensuring full coverage and a seamless fit over 4"x10" metal vents while maximizing ventilation for superior airflow. Strong Magnetic Hold: Equipped with 0.06-inch thick magnets (50% thicker than standard 40 MIL/0.04-inch magnets), our vent covers provide a more secure and reliable hold, even on vertical or ceiling vents. Reinforced Edges: Made with one-piece machine-pressed sealing strips, these vent covers are more durable and aesthetically pleasing. Safe & Stylish: Features rounded edges to prevent cuts and injuries, while the sleek black finish blends seamlessly with any decor. Easy to Install: No tools or adhesives needed—just place the magnetic covers over your vents for instant use. Our 4.7“x10.2” Magnetic Vent Covers are specially designed to fit 4"x10" metal vents better than standard 4" wide covers. With a 0.7" wider and 0.2" longer design, they provide a tighter and more secure fit over the vent edges, while significantly improving airflow efficiency for better ventilation in your home.