【Perfect Fit】: Our bathroom fan cover measures 12" x 12", with spring clips spaced 9" apart, ensuring a perfect fit for most standard bath fans. Before purchasing, we recommend checking your Ventilation Fan Grille's size to ensure compatibility with your Fan Exhaust., 【Even & Wide Air inlet Distribution】: Crafted with a unique step-down structure grille design, our bathroom exhaust fan cover guarantees 360-degree even air inlet distribution, preventing overheating or over-cooling. Ensures efficient airflow, swiftly removing odors for a fresh, comfortable home., 【Built to Last】: Our bathroom vent cover is constructed from premium eco-friendly ABS plastic, offering exceptional durability and heat resistance. Unlike metal covers, its unique composition minimizes condensation, ensuring reliable, long-lasting performance in maintaining optimal ventilation for your bathroom., 【Effortless Installation】: The bathroom vent fan cover features an easy installation, requiring no tools. With springs included for fixation on the back side, you can mount it yourself without professional assistance. Consists of an extra set of extended springs, catering to a wider range of installation needs., 【Widely Applicable】: The exhaust fan cover fits square ceiling or wall-mounted exhaust fans, bathroom fans, and ventilation fans, also serving as an air diffuser. Its classic white color seamlessly matches various ceiling colors, ensuring practicality and aesthetic appeal. Please let me konw if you have any problems!