How do I print a label? | Pirate Ship Support There are several options for regular desktop printers that print on letter-size 8.5x11" paper, and also options for 4x6" label printers or 2x7" label printers. NOTE: USPS labels can be printed in either the 4x6" or 2x7" sizes, while UPS labels can only be printed in the standard 4x6" size 👍