Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Great for Vent Protection: The dryer vent bird guard vent cover is a great solution for vent protection. Using the dryer vent cage guard to keep small animal and birds out of the dryer vents/exhaust vents while allowing airflow, no more nest in the dryer vents. Not easy to fade&crack: Our dryer vent bird guard for dryer vent cover is made of heavy dutymetal, not easy to fade and crack, sturdy than plastic dryer vent bird guard, not easily chewed by animals. Universal Dryer Vent Cage Guard: The universal dryer vent cover guard fits most 3 in. to 4 in. hood-style vents cover, fits most kitchen or bathroom exhaust vents/clothes dryer vent/bathroom fan vent. Warm tips: Pls clean the lint or debris on the dryer regularly. Color: White Material: Metal Package Contents: 2 x Dryer Exhaust Guard Vent Cover Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.