1. Easy Installation: The dryer vent opening guard for the dryer vent cover is simple to install. Mounting screws are included. Just cover the entire dryer vent cover and secure it with screws. There is ample space left to open the vent flap. 2. Universal Dryer Vent Cover Guard: The universal outdoor dryer vent cage cover for exhaust fans fits most 3' to 4' dryer vent covers or bathroom exhaust fans, compatible with most kitchen or bathroom exhaust fans/dryer vents/bathroom fan vents. 3. Resistant to Fading and Cracking: Our bathroom dryer vent bird guard is made of heavyduty, powdercoated galvanized steel, which resists fading and cracking, is more durable than plastic dryer vent guards, and is less likely to be chewed by animals. 4. Ideal Vent Protection: The bathroom fan dryer vent cover is an solution for vent protection. The exhaust animal guard keeps small animals and birds away from dryer/exhaust openings while maintaining airflow, preventing nests from forming in the dryer vents. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia