1. Measure your window orbit: In order to ensure the perfect application of the window lock, please measure the size of the window track. The window lock is equipped with vertical keys, which can be applied to the middle track of the window.2. Simple installation: each window locks the key. You can use the key wrench to slowly rotate the screw nut to fix it on the window track. It only takes 5 minutes to complete the installation. Our window lock is also equipped with rubber anti -slip protection pads to prevent scraping or damage to the window and improve stability.3. High -quality materials: Window is safely locking from aluminum alloy, durable and solid materials. The coating makes it suitable for white sliding windows, sliding doors and vertical doors.4. Security window lock: It can ensure the safety of your family members. Effectively reduce the risk of children and pets from high windows. By locking the window, it can also protect your property from damage during heavy rain and hurricane, or prevent theft and avoid property loss during travel.