General description The Cat Door Stopper is ingeniously designed to keep your pet cat safe by allowing cats to pass while keeping larger dogs out. This prevents dogs from spoiling the cat's food and litter. Technical specifications Material: ABS Weight: Approx. 50.00g / 1.76oz Size Before Stretching: Approx. 19x7x4cm / 7.48x2.75x1.57in Size After Stretching: Approx. 25x7x4cm / 9.84x2.75x1.57in Installation Simple installation process with no adhesive required. Disassemble the existing strike plate from the door jam. Use the existing screws to replace it with the door stopper strike plate. Detachable and reusable, ideal for renters and travelers. Usage Adjustable width to customize according to the size of your pet. Loosen the small screws to slide the components to the desired width and tighten the screw to lock securely. Accessing rooms is easy; just twist the knob or handle from either side of the door to open and enter. No need to manually lock and unlock every time you wish to