General description AlwaysH Magnetic Air Vent Strip is a versatile solution for managing airflow in your home, RV, or HVAC units. This 4-pack of magnetic air vent covers is designed to fit most standard air registers and can be easily cut to size for a perfect fit. Made from double-thickness magnetic material, these covers securely grip your vents, preventing any sliding and ensuring complete airflow elimination when needed. Technical specifications Dimensions: 12" x 5.5" Material: Double-thickness magnetic material Compatibility and accessories Compatible with steel vents only; not suitable for aluminum, plastic, or wood materials Usage Efficiently distribute airflow or close registers in underutilized spaces Reduce energy costs by preventing heating or cooling of unused areas Redirect airflow to areas that require better comfort Other information Please test with a magnet before application Manual measurement may result in an error of 1-3 cm Color may vary due to differences in