[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.⚠️ Please do NOT overtighten the screw after completing the installation. Over-tightening may cause the rubber cover to pop off.] 2025 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, making them perfect for travel. You can take them with you to hotels or rental properties to enhance the safety of your temporary accommodations. No Tools Needed: These window locks are easy to install on sliding door & window tracks.by the rotating concealed hexagonal window lock screw port. 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. Child Proof Window Locks: Use this window lock to protect your family from intruders and more! The sliding door lock allows you to leave sliding windows & doors securely locked in position, whether fully closed or ajar to allow a breeze. Package Includes: 8 security window locks, 8 mounting hex keys, If you have any issue about the window locks, please contact us. We will reply within 24 hours. The 2025 Enhanced Security sliding window lock is a versatile and travel-friendly solution for improving safety in homes and temporary accommodations. Adjustable to fit widths between 0.66''-1.65'', it is compatible with most sliding windows and doors, including living room windows, sliding glass windows, and patio doors. Made of premium stainless steel with rubber-protected metal plates, it prevents damage to window tracks while offering durability. The lock is easy to install using the rotating concealed hexagonal screw port, requiring no additional tools. Designed for child safety and intruder protection, it allows windows and doors to remain securely locked, whether fully closed or slightly open for ventilation.