Ensure the safety of children and pets: This child-proof sliding door lock effectively prevents children or pets from opening sliding doors and windows, eliminating the risk of climbing and falling, and maintaining ventilation. After installation, it can be moved freely without affecting the use of the windows. Robust and durable material: The sliding door lock is made of high-quality, environmentally friendly and compressible ABS material, making it durable and aging-resistant. With 3M tape on the back, it can be used on flat surfaces such as glass, wood, plastic and metal. Convenient lock design: Just flip to unlock, press again to lock – easy to use. It fits perfectly on various sliding doors or windows without taking up space. The maximum opening distance for the window is 7 cm. Easy to install: No tools or drilling required; strong adhesion. Just tear off the double-sided backing and stick it in a place out of reach of your child, then press firmly several times. Wait a few hours before use. Can be used for sliding windows, sliding doors, sliding glass, cabinet doors, wardrobe doors, windows, wardrobes, etc. It is suitable for indoor spaces such as balconies, living rooms, wardrobes, showers and storage rooms.