Our Classic Framed Diamond, Warning Attack Dogs On Premises 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 sign is great for your home, office or shop. Easily attach to any wall or door or flat surface. Good sign for security and safety, let trespassers and intruders know that there are dogs on your property.