This useful dog door is suitable for dogs of up to 18 inch shoulder height such as terriers and spaniels. Of strong construction the door is weatherproof draughtproof and has a silent action therefore not disturbing other pets or sleeping children or indeed you as the owner! The door is light in weight and can also be used by cats. With a 2 way lock that can be set to locked or unlocked this door securely shuts with a magnetic closure. Featuring a pet-preferred transparent panel. Overall size: 290mm x 350mm cut out size: 242mm x 300mm.