ID tags are small labels or markers that contain information used to identify an object, person, or animal. They can be made from various materials, such as plastic or metal, and often include details like names, numbers, or barcodes. ID tags are commonly used in settings like schools, hospitals, and pet shelters to ensure proper identification and tracking. In the case of pets, ID tags are typically attached to collars and may include the owner's contact information. This helps reunite lost pets with their owners. Additionally, ID tags are used in industries for inventory management, ensuring that items can be easily located and accounted for.