Keep windows and household doors safely limited while preserving ventilation and everyday use. Key benefits Child safety: Prevents children from opening windows, doors or appliance lids fully, reducing fall and access risks. Controlled ventilation: Lets you keep windows partially open for fresh air while preventing larger openings. Wide compatibility: Works with inward-opening casement windows, sliding windows, doors, refrigerators, washing machines, cabinets, trash cans and similar household items. Adjustable fit: Telescopes to any required setting up to 17.5 cm to match different gap sizes. Simple installation: Mount with strong adhesive or screws to suit the surface and provide long-term protection. Robust and low-profile: Provides reliable security without visibly changing the look or function of your home items. Product features Function: Adjustable locking stop that limits opening distance while allowing normal use when unlocked. Size: Extends up to 17.5 cm; length can be set precisely for each installation. Compatibility: Suitable for most window styles (inner-opening casement and sliding), plus doors and appliance lids as listed above. Installation options: Choose adhesive for quick, tool-free mounting or screws for a permanent, high-strength attachment. Performance: Designed to integrate seamlessly into the home and deliver durable child protection and everyday convenience. Practical use scenarios Window ventilation: Install on an inward-opening window to keep it partially open for airflow but prevent a child from pushing it wide open. Appliance and cabinet safety: Fit to a refrigerator, washing machine, or kitchen cabinet to stop toddlers from accessing contents or climbing inside. Door and trash can control: Limit how far a door or bin lid can open to reduce pinching hazards and unwanted access. Installation tips Select adhesive installation for smooth, painted surfaces or when drilling is not desired. Use screws on thicker frames or high-traffic locations where extra holding power is needed. Adjust length to the minimum required opening for safety while preserving necessary function and ventilation. A practical, adjustable solution for everyday child safety that keeps ventilation and usability intact without compromising style or function.