General description Window locks designed for horizontal sliding windows, vertical sliding windows, and sliding doors such as patio doors, sliding glass doors, and sliding windows. These locks are ideal for home and office use, allowing you to keep windows partially open or closed to prevent children and pets from climbing out, while also deterring burglars from entering. Technical specifications Material: Aluminum alloy Durability: Rust-resistant and reusable Maximum track thickness: 16 mm Minimum track height: 15 mm Installation Quick 2-step installation No tools or drilling required Usage Use double-hole locks in heavy windows and doors for added security Not suitable for plastic window frames Not suitable for tracks in the middle of the window