Pet safety and insect protection Keeps cats and other small pets from falling or escaping through open windows, while preventing insects from entering. Fresh air with clear view Transparent screen mesh with tiny holes lets in fresh, cooler air while maintaining visibility. Made of 100% polyester for durable use. Easy installation Screen mesh can be cut to size easily with a cutting tool. Fits most bedroom windows and roof windows with simple resizing. Durable and neat appearance Tightly woven polyester fiber for a clean, unobtrusive look. Tearresistant and stable material that supports a long service life. Compatibility and performance Suitable for standard bedroom and roof windows. Use scenarios A cat or small pet owner who wants ventilation without risking falls or escapes. Summer or spring days when you want open windows but need to keep bugs out. DIY window projects such as skylights, dormer windows, or irregular windows that require a fitted screen.