The Ferplast Swing 11 is a robust dog flap, ideal for medium-sized dogs, made from durable plastic. This versatile flap can be installed in various types of structures and materials, including wood, glass, metal, and masonry walls. Equipped with a 4-way locking system, it allows you to select the mode of operation: exit only, entry only, entry and exit, or total lock, preventing the animal from entering or leaving. It also includes a special draught protection system and a complete extendable tunnel, which facilitates installation on thicker doors.