The Ferplast Swing 3 is a robust plastic pet flap, ideal for cats and small dogs. It 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 operating mode: exit only, entry only, entry and exit, or total lock. It includes a partial tunnel, which can be complemented with an extension tunnel (sold separately) for doors or walls thicker than 5 cm.