Package of 2 sliding window locks designed for patio doors, sliding glass doors and sliding windows. These compact locks provide controlled ventilation, added security and a simple way to limit window movement. Key benefits Prevents full opening to reduce risk of falls and unauthorized entry. Ideal for keeping windows partially open while maintaining safety. Durable plastic construction resists rust and corrosion for long service life. Includes keys for locking and unlocking quickly and securely. Simple installation and replacement for existing window latches to improve security without major modifications. Compatible with most sliding doors and windows used in homes and offices. What it does Acts as a stopper to limit how far a sliding window or door can open. Provides an antitheft layer by preventing easy forced entry through sliding openings. Allows controlled ventilation while preventing children or pets from falling out. Material and performance Made from sturdy plastic to avoid rust and reduce maintenance. Designed for everyday use with reliable locking action and consistent performance. Typical applications Home bedroom or living room windows to keep them partially open for airflow while limiting the opening range. Patio door or balcony sliding door to deter intruders and add a quick security measure at night. Office windows to allow controlled ventilation without compromising security. Package contents Two sliding window locks, each supplied with a key for locking and unlocking. Notes Intended as a secondary security and safety device for sliding windows and doors. Installation requirements may vary by window model.