SLIDING TRACK LOCK: Secure your patio door, sliding glass door, and both horizontal & Vertical sliding windows. Ideal for securing a vertical window air conditioner or window fan setup. For the window ACs: window locks security help make sure the window stays closed tightly to create a good seal with the weather stripping you added between the window sash and AC unit. window stopper also add safety by keeping the window closed so the window AC can’t be pushed/pulled out. Use this window lock to protect your family from intruders and more! The sliding door lock allows you to leave sliding windows & doors securely locked in position, whether fully closed or ajar to allow a breeze. No Drilling Required: Window Locks with Key, Fast to Install. Window track lock keeps it from sliding and if ever want to adjust or remove then the tool that it comes just need to be twisted.Vertically open windows may be blocked from the window frame, vertically key for this situation for the final tightening. If the key cannot be found, an Allen Wrench should work as well. No punching installation, easy replacement, no other tool installation., Manufacturer: KXCVBNKLJ