Adjustable Window and Door Screen Mesh Size and Compatibility: Measures 39.37 inches wide by 39.37 inches long. Fits windows or doors up to this maximum size, and can be trimmed for smaller openings. Ideal for DIY projects and custom installations. Please measure your window or door before to ensure a proper fit. Practical Function: The mesh helps block sunlight while still allowing fresh air to circulate. Made from environmentally friendly material that is durable, washable, and provides a long service life. Suitable for homes with pets, offering moderate resistance to scratches without obstructing airflow. Versatile Applications: Designed for a variety of screen replacement needs, including patio screens, porch screens, pool enclosures, garden screens, sliding doors, patio doors, entry doors, front doors, storm doors, back doors, French doors, and greenhouse doors. Easy Installation: Simple to mount and adjust for different types of doors and windows. Ideal for quickly replacing worn or damaged screens without professional assistance. Packaging Note: Screen mesh is folded for convenience. Creases may be visible upon opening but will naturally flatten after the screen is laid out for a short time. Use Scenarios: 1. a torn porch screen to keep insects out while enjoying ventilation. 2. Install in a sliding patio door to prevent pests from entering while keeping your view unobstructed. 3. Fit to a greenhouse door to promote airflow while reducing direct sun exposure.