JUST LAUNCHED - Lets Cats In and Keeps Dogs Out - The Cat Door Prop 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). Effortless to Use - Simply turn the knob or handle from either side to open the door and enter the room. It can't get any easier than that. to manually latch and unlatch every time you enter the room. Relatching in the propped position is even easier... just push or pull the door closed until the Door Latch Holder automatically latches onto the door plunger. That is it Simple Installation, Non-Permanent & Portable - Remove the existing strike plate from the door jam and replace it with the strike plate using existing screws. The Door Holder for Cats does not require any adhesives, cutting, or making holes in your door, making it removable, reusable, and the perfect solution for renters and travelers alike. The result - a dog proof cat litter box in seconds. Adjustable Width -door latch holder allow you to adjust the width of the door opening to keep the door ajar between 2.5 - 5.5 inches so you can customize it to the exact sizes of your pets. Simply loosen the little screws, slide the two pieces to the desired width, and fully tighten the screws until it locks and no longer slides. Strong, & Pinch Free - Made from thick, high-quality materials making it strong and so it stand up even to big and determined dogs. Finally, a pet, dog, cat door stopper where there is no "movement" when in the propped position which means no pinched fingers, , and no locked in or out of rooms. No Cut Cat Door - adjustable door latch lock is the best color: White Material: ABS Package Contents: 1 x Door Prop for Cats Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.