This security lock is used to secure sliding glass patio doors and windows. The thumb turn screw makes it fast and easy for you to attach it to the track without tools and remove. You can use it as a vent lock to leave part of the door or window slightly open for ventilation. Attach it overhead so children do not have access to it.
Single small security lock
Easy to use and install
No tools required
Convenient thumb turn
Extruded aluminum
Light weight
