First clean the surface of your cardboard box where you will be applying your labels. Print both your label (with barcode) and your Shipping Info Summary (without barcode). Then peel off the backing, and separately stick them to your cardboard box. We also suggest that you print and put a copy of your Shipping Info Summary inside your box because it helps us get your shipment back on track more quickly in the event that your label becomes unreadable or is removed during transit.