Window Locks, 4 Sets Sliding Security Window Lock with Key for Vertical & Horizontal Sliding Windows & Sliding Doors, Adjustable Window Locks

【Designed for Vertical Horizontal Sliding Windows】Perfect for up-and-down and side-to-side sliding windows with flat tracks. Not compatible with sliding patio doors or tracks over 0.67 inches thick. Please measure your window track before purchase. 【Tool-Free Installation with Dual Screws】Window Locks clamp securely to window tracks using two built-in screws and the included hex key. No drilling or permanent tools required. Easily adjust for full closure or limited opening for ventilation. 【Durable Aluminum Construction with Rubber Padding】Made of strong aluminum alloy for long-lasting use. Soft rubber cushioning inside prevents scratches to your window frame and enhances grip for added stability and safety. 【Enhances Home Safety and Child Protection】Helps prevent windows from being fully opened—ideal for homes with toddlers, pets, or ground-floor windows. Allows fresh air in while deterring intruders and accidental openings. 【Value Pack with Keys Included】Includes 4 window locks, 4 yellow key handles, and built-in rubber pads. Bright keys are easy to locate and use. Use multiple locks on wider windows for extra security. Questions? We're here to help.