The Yale P-114 patio door lock is a simple to install solution to help you protect against potential break ins. With a push to lock action, this means no key is required when locking your door for added convenience. This patio door lock also offers an optional ventilation position for if you need to let some air into the room when sitting on your patio. Simple, effective security that anybody can install giving you that additional level of security for the ultimate peace of mind. Simple, effective security Suitable for most sliding patio doors Push to lock action (no key required to lock) Offers an optional ventilation position Features security clutch-head screws Pack contains 2 keys for unlocking