4-way switching mode: dog valve, papet, mosquito net door, 4-way pet valve, mosquito net for small dogs and cats with a bezel at the entrance and exit, and control Easy and fully locked from the entrance and output of your animal. Size and Application: For dogs and cats Small and large - Large Dog Dimensions: 30x35cm, suitable for cats and dogs less than 11.8 kg and one round of size less than 60 cm. Automatic closing and lockable: the pet door with magnetic flap lock, L ‘Built-in magnet can keep the door closed automatically when your cat or dog walks. Easy installation: Complete instructions included, facilitate installation in mosquito net doors, panels and patios or other grumbled areas, etc. Excellent quality: Our chat door frame is made of high quality ABS material, the thread is made of expensive, solid and durable materials. flap for Dog, Cottage, Mosquito net door 4-way switch mode: the cat can be set to 4 modes by switches with tabs on the flap: output only, input only,