Ebay international postage label?

hello i sold an item on ebay to a member in canada. i am in the us so i am shipping via USPS priority mail international. i made the shipping label using paypal/ebay's service but when i printed the label out, 2 sheets of paper came out with 2 labels each. which label do i use? note: this was not my error, i checked the print preview and it showed 2 pages with 2 labels each. one of the labels has a 3d barcode in the top right hand corner and states the postage amount.