Our Classic Framed Paws, Guard Cat on Duty Sign can be attached to the door, wall or window of your home or business. The text and design work on this sign is laser engraved into sturdy plastic. Each sign comes with an adhesive foam backing, allowing them to be attached to any flat surface. Comes in multiple colors. Our Dog and Pet signs are great for your home or business. Fun novelty sign to let people know that you have a cat as home security.