[Notice: The Window Locks are compatible for most Horizontal & Vertical sliding window, Not for Casement windows, Upper hanging window, Solo or Blurred track window, The window in-out track height need to be greater than 0.5'' inches.] Enhanced Security Design: The sliding window locks are adjustable in 0.66''-1.65'' inches width, making them suitable for most sliding window and doors. The window locks are versatile enough to be used on most types of sliding window and doors, including living room window, sliding glass window, patio sliding doors, and more. They are small and lightweight. You can take them with you to hotels or rental properties to enhance the safety of your temporary accommodations. Premium Quality:this window lock is made of stainless steel to resistant damage. Both metal plates feature rubber protection, ensuring no harm to the window tracks. No Tools Needed: These window locks for horizontal sliding windows are easy to install on sliding door & window tracks.by