Compatibility: The window lock is suitable for sliding windows, sliding doors, and vertical doors. The latch is 2.4 inches long and fits tracks up to 1 inch wide with rubber pads, or tracks up to 3/4 inch wide without rubber pads. Please measure your tracks to ensure proper compatibility.

Screw Design: The sliding window lock uses double screws to install on the sliding window/door track, preventing slipping and increasing security. Simply screw in with an Allen key (included) to fully secure your window/door or vent, no additional tools required. Comes with rubber pads to prevent scratches or damage to windows and increase window security.

【High-Quality Aluminum Alloy】Sliding Door & Sliding Window Stop: the sturdy aluminum is strong and durable, and the attractive yellow key handle is visible and easy to find.

Wide Range of Applications: Sliding window locks are perfect for sliding patio doors, sliding glass doors, and more. Feel free to open the windows a few inches for fresh air and peace of mind as they are no longer open enough for someone to sneak into your home without breaking the window and alerting your dog. Place a window lock in your child's room to prevent your child from falling out of the window.

Package Includes: Set of 4 sliding window locks with rubber pads and keys. Apply multiple window locks to increase the security of sliding doors.