The default dimensions for thermal printing SKU labels say 100 mm x 25 mm. ( 4" x 0.98" )

This doesn't seem to align with Amazons barcode size requirements though.

I tried playing with the dimensions, but then the words get cut off.

This may sound dumb, but I have 4" x 6.25" labels I was thinking of using for SKU labels on my first shipment, but I'm guessing these are too big, so I may have to learn how to print labels on a laser printer instead.