These convenient self-adhesive labels are integrated with a tear off paper receipt. These are ideal for USPS Click-N-Ship printing but they also work with Endica or Stamps.com postage software. These labels work well on both laser and ink jet printers and can be used for 1st class, USPS Priority, and Express mail postage options. These labels have a great look with their rounded edges that give your shipments that professional look.