FeatureSturdy: Made from thick plastic material, our cat door stopper is built to last. It is the solution for indoor cat doors, providing your with their own space.Easy to use: say goodbye to manual locking and unlocking Simply turn the knob for easy access from both sides of the door. Relocking is a - just close the door gently and the door lock holder will lock it automatically.Adjustables Width: Adjust the width of the door to fit your pet perfectly. Simply slide the two components to the desired width and tighten the screws for a secure lock.Design: The cat door stopper is ingeniously designed to keep your pet cat safe. By adjusting the door39;s width, it effectively allows to pass while keeping larger dogs out, thereby dogs from spoiling the cat39;s food and litter.Lets Cat In and Keeps Dogs Out: The Cat Retractable Cat Stop is the easy, convenient, and secure way to keep door cracked open for cat to go in while also keeping it narrow enough to keep dog out of room if slightly larger than cat.Notice:Actual color may be slightly different from the image due to different light effectPlease allow 1-3cm deviation due to manual measurementDescription:Size: 19.5*7*2.25cm shortest/25.3*7*2.25 longest when stretchedMaterial: Plastic Package List:1x Door Prop for Cat