Every box you send to an Amazon fulfillment center requires two labels: a carrier label (e.g., UPS or FedEx) and an FBA Box ID label.

Use 4" x 6" rolls or fanfold labels. Popular options include the Rollo Thermal Printer or Zebra models .

4" x 6" (10 x 15 cm) is the industry standard for thermal printers.

3 1/3" x 4" (8.47 x 10.16 cm) is also supported by Amazon for some print formats. Printer Type:

Individual units must have an Amazon barcode (FNSKU) that covers any existing manufacturer barcodes. Use Amazon barcodes for FBA

For Amazon FBA, you must purchase two distinct types of labels: for shipping boxes and between 1" x 2" and 2" x 3" for individual product barcodes . Choosing the right size depends on whether you are labeling a large outer shipping carton or the specific items inside. 1. External Shipping & Box Labels

Use 8.5" x 11" full-sheet labels. You can print two 4" x 6" labels per page. 2. Product Barcode Labels (FNSKU)