We currently support the following Label types for DYMO printers:
30336 - 1 x 2.125
30252 - 1.125 x 3.5
30321 - 1.4 x 3.5
30334 - 2.25 x 1.25
Here is an example of these label sizes to help you determine which will work best for your business:
Due to their orientation, we have found that 30334 labels are typically able to be printed at a faster rate without a decrease in quality.