This well designed cat and dog flap will give your pet freedom to leave and enter the house as they wish without the risk of a chilly draft thanks to the wind stopper system the ferplast swing 11 medium cat and dog flap features a four way locking system allowing you to set either entry only exit only entry and exit or closed as well as last direction indicator so you know if your pet is in or out this innovative cat flap can be fitted in any wooden metal or glass doors and also in brick