Description 1. Secure Ventilation Solution: This device is engineered to hold your windows securely in a partially open position. It's perfect for allowing controlled ventilation into your space while maintaining a level of security, preventing the window from closing or opening wider unexpectedly. This core functionality is a primary for any home. 2. Effortless Setup: Experience instant convenience with this window wedge. Its design allows for straightforward placement between your window frame and the sash, requiring no tools or complicated installation steps. It's crafted for quick application and removal, providing a simple yet effective addition to your living environment. 3. Material & Size: Constructed from quality plastic, this window restrictor features compact dimensions for discreet use. It measures approximately 7.2 cm (2.83") in length, 2.5 cm (0.98") in width, and 3.8 cm (1.5") in height. Its precise sizing ensures it fits seamlessly without intruding on your window's aesthetics or operation. 4. Enhanced Safety : Significantly improve safety within your home by using this window stopper, which prevents windows from opening too wide. This feature is particularly valuable for households with curious children or pets. 5. Practical Design: The minimalist yet highly functional design of this window wedge offers a practical approach to managing window ventilation. It aids in preventing sudden window slams caused by drafts and provides enhanced peace of mind by consistently maintaining a desired window opening. Package list 1pc