The petsafe staywell dog flap 640 is an easy and practical solution for you and your dog the petsafe staywell dog flap is built into the door or wall with the 2 way closure system you get to decide whether your pet can enter and exit whenever it likes or if the door remains locked and adjust it respectively the flexible flap is especially low noise the aluminium frame adds an elegant appearance and high stability at the same time the 2 way closure system can be used for entry and exit loc