ITROLLE 4PCS 11x22x17mm Punch Free Silver Stainless Steel Window Restrictor Suitable for Sliding Door

["Precision locking mechanism, tailored for sliding windows: Specifically engineered for sliding windows, this system securely holds the window in either the closed or ventilation position. It ensures both airtight sealing and safety when closed, while locking the window at the desired opening angle during ventilation to prevent accidental movement. This design combines practicality with safety.","Premium materials: Crafted from high-grade stainless steel, this product is robust and durable, resistant to rust and corrosion. Its smooth surface ensures stable performance, guaranteeing long-term reliability.","Screw-lock mechanism, simple and reliable operation: Employing a rotating screw locking system, turning the screw clockwise securely locks the window track in place, while unscrewing counterclockwise releases the fixation. The operation is logically straightforward, requiring no complex tools, and the locked position remains stable and resistant to loosening.","Compact and portable design for hassle-free installation: The product's diminutive size occupies minimal additional space, ensuring it does not impede the window's smooth operation or compromise its aesthetic integrity once fitted. Its lightweight construction places no undue load on the window track, guaranteeing no structural damage to the track system even with prolonged use.","Flexible positioning adjustment to accommodate diverse requirements: The locking position can be adjusted according to usage scenarios (such as fully closed or partially open for ventilation), enabling both secure locking when the window is fully closed and limiting the opening size during ventilation. This adapts to varying seasonal and environmental needs."]