Swing 15 is a dog flap made of sturdy plastic, perfect for large dogs. Reliable and innovative, like all swing pet doors of Ferplast’s Swing range, it can be installed on different structures and materials: wood, glass and metal, as well as brick walls. Note: Be careful when installing the door on tempered glass or double-glazed glass (the holes must be factory drilled). Equipped with a four-way closing system that allows for four different uses of the door: exit only, entry only, exit and entry, full lock (your pet won’t be able to exit or enter). The swing dog door is equipped with a special protection system to keep air draughts outside. It also comes with a complete sliding tunnel, so it can be installed on thick doors as well. Versatile AND Adaptable: this plastic flap is perfect for large dogs. Thanks to its universal installation, it easily adapts to different structures and materials, metal doors, wood, glass and masonry walls. Maximum Flexibility OF Use: thanks to the 4-way locking system, the dog door allows you to adjust its use easily and intuitively. Choose between free entry and exit, entry only, exit only or locked door, to manage your pet's access. Windproof System AND Direction Indicator: pet door with Wind Stopper System which prevents drafts from entering the house. The electronic indicator signals the direction in which the animal last passed, offering additional control at a glance. Functional AND With AN Elegant Design: dog flap with shock absorber that cushions the blow when the animal pushes the door to the end for delicate use. Aesthetically pleasing, this door blends harmoniously with the decor of your home. Ideal Dimensions FOR Your Pet: dog flap large, the opening of the door measures 29.7 cm long x 34.5 cm high, ideal for the comfortable passage of the animal. Overall dimensions 41.2 x 9.6 x 48.2 cm. Installation tunnel included.