Tractor Feed Labels - What are tractor feed labels?

Answer:

These labels have evenly spaced holes (also known as feed slots or “starburst holes” if the holes have jagged edges) punched into the left and right margins of the sheet (usually in fan-fold form) or roll so that they can be printed on tractor feed printers (also known as pin feed/sprocket feed printers), such as dot matrix and line printers with paper-feed mechanisms. The holes allow the continuous web of labels to be guided through the printer by sprocket wheels or a toothed belt while maintaining the correct alignment throughout the printing process.