【Product Information】The window lock bar is made of steel, a zinc alloy knob, durable, durable and sturdy, and is not easy to rust. The window lock can be installed on windows that open to the left or right. Product Advantages: The window tilt protection is a practical element of your home furnishings, allowing you to adequately ventilate your home and control and adjust the window size. Opening as needed. Our window blocker prevents windows from opening or closing easily and effectively due to drafts or wind. Comfort: The perfect protection against slamming or opening windows in windy weather, which increases the comfort of using windows. For casement, tilt and turn windows, also suitable for balcony and patio doors. Can be used as a cat protection. Instructions for use: After installation with screws, easy to use, simply turn the knob to adjust the window opening position. Storm functionality is not guaranteed. Keep doors and windows closed. Product Dimensions: Window Lock Length: 19cm Rod Diameter: 6mm Mounting Plate Width: 50mm/40mm Knob Diameter: 20mm Maximum Sliding Distance: 14cm Windows are not easy to break in windy conditions. Note: The data are all manual measurements. Please allow 1-3cm error. Due to the light and screen difference, there may be some color difference, depending on the physical object received.