Laser or Inkjet Printers
If you or your customers will be using a laser or inkjet printer, you’ll want to use 5.5" × 8.5" shipping labels, such as the Avery White 5-1/2 × 8-1/2-Inch Ink Jet Printer Labels (also referred to as Avery #8126 labels). Your local office supply store should also carry these labels, and you may be able to receive them for free from various shipping carriers.
You can also find them at these two locations (in addition to many more outlets):
Thermal Label Printers
If you or your customers will be doing a lot of shipping, we recommend purchasing a thermal printer capable of printing 4"x6" labels. This will save you money over the long term since thermal printers do not require ink. Check the printer specification for each printer's label requirements at the manufacturer's website.
DYMO 4XL LabelWriter*
ROLLO Thermal Printer
*NOTE: DYMO printers require DYMO branded labels, due to their self-calibration capabilities.