Widely Used: The sliding window locks can be easily applied to most environments, such as patio doors, sliding glass doors, sliding windows of hotels, residences, hospitals, schools and offices to give children a safe environment. Simple Operation: Lock your sliding doors and windows with these easy-to-install and punch-free locks, equipped with rubber pads to protect the surface and with a hex key for precise adjustment. Safety Environment: Good security for sliding windows and doors, it is installed in the window track, it is adjustable by a single key (included). It prevents the window from running on the lane and opening, or allows only the desired distance for ventilation, etc. to provide your children with a safe environment. Adjustable: These stainless steel sliding window locks are perfect for limiting indoor ventilation, protecting your family from thieves and curious children, and improving air circulation at home. Durable Material: Made of stainless steel, the main material