When a pet is lost, a pet ID tag is often the only way to find its owner. In the growing US pet market, the demand for pet tags is booming. Annual ID tag sales now surpass $155 million with more than 18 million pet tags sold. Pet tags include the name of the pet and owner, and the owner’s address, phone number, and other relevant information. Artwork and logos may also be included. Pet tags can be designed using different materials, such as aluminum, brass, metal, plastic, and stainless steel.