Designed Specifically for a 250x170mm / 10x6.7'' Size, Providing an Ideal Fit for Various Ventilation Openings | Provides Excellent Airflow and Ventilation, Promoting a Fresh and Comfortable Atmosphere High-quality ABS Plastic Construction Resistant to Weather Conditions, UV Rays, and Corrosion, Ensuring Long-lasting Performance Equipped with a Built-in Insect Screen, Effectively Preventing Insects and Other Unwanted Objects from Entering Your Space Suitable for both Indoor and Outdoor Use, Providing Versatile Ventilation Solutions for Different Environments | Sleek and Unobtrusive Design Enhances the Aesthetic Appeal of any Space Easy Installation with Pre-drilled Mounting Holes, Allowing for Quick and Secure Attachment | Lightweight and Compact, Making It Convenient to Handle and Transport