A dog flap for medium sized dogs. The outside size of this flap is 31 x 38.4 x 9.6cm. The door size is 23.3 x 27cm. Thanks to its design, the Swing 11 can fit any door (e.g. wooden, metal, glass, walls or screens), it has a 4 way locking system (access only; exit only; access and exit; close) and a gentle controlled closure.