Sliding Window and Door Security Lock (6-Pack)

This security lock is used to secure sliding glass patio doors and windows. The thumb turn screws 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.|Double security lock|Easy to use and install|No tools required|Convenient dual thumb turns|Rubber insert for tight security|Extruded aluminum