Unique Bargains 5/8' Aluminum Alloy Window Locks Sliding Door Security Stopper with Key, Black 4 Set

Security locks can enhance home safety by preventing intruders from gaining access through window, protecting from accidentally opening window and falling out, and helping keep window securely closed during windy and rainy weather events.

Advantage
Made from durable aluminum alloy, lightweight and anti-rust. Suit for different types of glass window including sliding, double-hung, casement, and vertical & horizontal slide doors.

Instruction
Clean the window frame surface installed. Clamp the lock and rubber gasket onto the window track in the desired position. Adjust the key to secure the window and ensure a tight fit. Test the lock to make sure it's working properly and securely.

NOTE: Make sure to measure correctly when installing the lock, including window/door height, thickness, etc.