Purpose and key benefits Secure windows quickly and reliably to reduce the risk of child falls and to deter opportunistic theft. Easy retrofit for family homes, hotels, schools, nurseries and similar environments where safety and simple operation matter. Durable stainless-steel construction provides long-lasting performance and resistance to daily use. How it works No drilling or punching required: the lock installs using an existing hole in the window/frame. Operates by turning the built-in button through the hole; the lock is controlled directly with that button. Each lock is supplied with one key for additional security and controlled access. No special tools or additional installation hardware are needed. Material and performance Made from high-quality stainless steel for strength and corrosion resistance. Robust design intended for repeated locking/unlocking and reliable holding force to limit window opening. Compatibility and function Designed for use on windows where a simple, tool-free locking solution is preferred. Suitable for a wide range of settings: family residences, hotel rooms, classrooms, nurseries and other places that require straightforward window safety control. Practical use scenarios Family home: Restrict how far a bedroom or living-room window can open to prevent falls by toddlers. Hotel rooms: Provide an extra layer of window security for guests without modifying the window structure. Schools and nurseries: Reduce accident risk by limiting window access in classrooms and childcare areas while allowing staff to unlock when needed. What you get A stainless-steel window lock that installs without punching, includes one key per lock, and is operated via its built-in button through the existing hole—no additional tools required.