Bus Tag Cards are Here! These PVC cards are extremely durable, and come as a set with our 6" clear loop for attaching to backpacks or beltloops. The back of the card is blank for writing student information, route numbers, or affixing a routing label. Labels are provided for free with your order (a free template is also available for download here). The front of the card is customized with your school name and information for free! You can also customize the front with lines and use with a permanent marker.