Pet Door Dog Patio Door Clear Round Flap Door with 4-Way Lock and Liner Kit for Cats, Dogs and Puppies Ideal for Screens, Sliding Glass Doors, Glass Window 【 4-WAY LOCKING (IN, OUT, IN/OUT, LOCKED)】The cat flap is equipped with four models, can be locked by a switch, just swing it, only inside and outside and fully locked, easy to control your pet and more; with cat flaps so you don’t have to close and open doors to wait for your pet 【Perfect Glass Decoration】Clear design gives the mosquito net an overall quality, perfect for pets. mosquito nets, sliding glass doors, glass windows; suitable for all glass application applications; your pet will immediately fall in love with the stylish cat flap 【Quiet and Convenient】Two parts with cat flap; door brush strips eliminate door closing noise and internal rubber ring protects cats from harm; quiet action will not scare pets or disturb owners, allowing cats to use their litter box freely 【DURABLE AND WEATHER RESISTANT】The cat door