Universal Dryer Vent Bird Guard Protector - Universal fit for 3 to 4 inch vent openings: Compatible with most outdoor dryer vent covers, bathroom exhaust fans, and common kitchen or bathroom vent/dryer vent outlets. Designed to cover the vent opening while allowing normal airflow. - Durable construction: Made from heavy-duty galvanized steel with a white powder-coated finish. Resists fading and tearing, more robust than plastic bird guards, and not easily gnawed by animals. - Easy installation: Includes mounting screws. Simply place the guard over the vent cover and secure with the screws, leaving enough clearance to open the vent flap. - Effective vent protection: Keeps small animals and birds away from dryer and vent openings while maintaining airflow, helping prevent nests and blockages. - Use scenarios: - Install on exterior dryer vents or bathroom exhausts in homes near trees or shrubbery to deter birds and small animals. - Fit on kitchen exhausts or laundry vent outlets to reduce wildlife intrusion and debris. - Seasonal or year-round protection in areas with wildlife activity, ensuring reliable ventilation without compromising performance.