Keep Dogs Out | cat door latch is designed for pet homes to allow your cats to enter and leave the room freely, keep the dogs out, or protect the baby and family from large animals. Adjustable Width | The flex latch has 5 adjustment holes, instead of only 2 for other cat door stoppers. You can adjust the width according to the size of your pet. It fits most doors. Durable Materials | Our cat door holder is made of high-quality PE and stainless steel, which can withstand the impact of large dogs. No need to worry about breaking or failing to rebound. Easy to Use | No tools or cutting of the door are required, just insert the pin into the lock slot, without any damage to the door. Fish-shape design is both stylish and practical. Stay Out of Trouble | Using our flex latch cat door holder can isolate large animals easily, give your cat more comfortable and free space, and make your home cleaner and safer.