Security Window Fasteners for Aluminum Alloy Construction Angle Restrictor Tool Release Outside Opening Windows Up to 20mm No Drilling

Widely used: twelve hundred window thicknesses from 0 to 15 mm and handles with diameters below 20 mm. This hook flexible and fits different types of casement windows with external opening LIMITED OPENING FUNCTION In addition to locking this window hook provides a limited opening feature that allows controlled ventilation while maintaining safety PERMANENT ALUMINUM Substance Enamel: made of excellent aluminum alloy, this window hook provides excellent durability and oxidation resistance, ensuring lasting performance under strong conditions Denial drill installation particle mail: by highlighting a denial drill plan, this window hook can be easily installed without the need for complex tools for other approaches, thus preserving the integrity of your window skeletons INCREASED CHILD SAFETY This window hook is specially designed to prevent unintentionally opening windows, ensures a protected living environment and provides the mother safety