Security Protection: Sliding window security lock is a practical tool that allows you to easily adjust the opening and closing size of the window, keep the window ajar or closed to avoid the hidden danger of children and pets climbing the window, but also deter thieves from entering and improve air circulation in the room. Improve security and ventilation. Durable Material: Sliding window lock Made of thickened stainless steel with thicker screws, the main material is sturdy and durable to prevent rust, premium quality. Sliding window locks Equipped with rubber pads to protect the window from scratches and abrasion, enhance the gripping force of the lock, improve security, and can be reused many times. Adjustable Distance: With an adjustable window lock, you can easily change the distance of the slot, convenient to use and suitable for most sliding windows. Maximum adjustable distance for sliding window lock: 50mm, minimum adjustable distance: 10mm. Please measure your window track