FITMENT: Perfectly fits 4" x 12" duct openings, ensuring a precise match. It is essential to measure your duct size, as the register size corresponds to the duct opening before buying vents covers or registers. DURABILITY: Crafted from robust steel with a 1 mm thick faceplate, featuring a resilient paint finish for long-lasting performance. EFFORTLESS AIRFLOW CONTROL: Engineered steel damper with a foot-friendly control lever, resistant to rust. Ideal for high-traffic areas. MODERN DESIGN: Contemporary aesthetics with clean lines, seamlessly enhancing any home decor style. EASY INSTALLATION: Tool-free setup; available in various sizes and colors to suit your needs