Features: Install at least 9cm away from the window frame as shown in the picture. If the slot width is greater than 13mm, choose the S model. If it is less than 15.5mm, choose the L model. Crafted from durable stainless steel, this Window Stopper provides a reliable solution for limiting or releasing window openings. Detachable designs allows for flexibility. Suitable for various living environments, this Window Stopper add layers of safety. Keep your homes secure and give yourself peace of mind. Enjoy freshs air and natural light while keeping your windows secures. Perfect for bedrooms, living rooms, or offices. Upgrades your window security with this practical Stainless Steel Window Stopper. Compact size and easy installation make it suitable for different types of windows. Protect your home today! Specifications: Material: stainless steel Opened size: approx 15.6cm/6inch Size: S/L(optional) Package Includes: 1xWindow Stopper note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.