FLYZZZ Adjustable Window Screen for Windows, 2-Way Use for Horizontal & Vertical Windows, Expandable Window Screen with Locking Screw for Stability, 18" HExpands 28-52" W, [2-Pack]

DESIGNED FOR HUNG WINDOWS: The ideal, easy-to-install solution for vertically-opening windows (single and double-hung). Provides instant fresh air and reliable insect protection for homes, apartments, and RVs. | PERFECT HORIZONTAL FIT: This screen is 18 inches high and expands horizontally from 28 to 52 inches wide, fitting a wide range of standard window openings. Please measure your window opening carefully before ordering to ensure a perfect fit. | PREMIUM BUILD & PERFECT SEAL: We combine three key features for superior performance. A Sturdy Aluminum Frame resists bending and rust, the Durable Fiberglass Mesh provides excellent airflow and visibility, and the Integrated Weatherstripping on the top and bottom creates a tight, bug-proof seal. | BONUS! VERTICAL USE FOR SLIDING WINDOWS: Unlike other screens, ours includes an exclusive locking screw that allows for secure vertical installation in side-sliding windows. It prevents the screen from slipping down! CRITICAL SIZING NOTE: For this vertical use, your window opening height must be between 28" and 52" (the screen's expandable width). | INSTALLS IN SECONDS, NO TOOLS NEEDED Getting fresh, bug-free air has never been easier. Simply place the screen in your window track, expand it to fit, and close your window to hold it in place. For vertical use, just tighten the lock screw first. Its that simple.