If you are shipping via USPS Priority Mail, go to your eBay page and to the item you sold. There should be a list of actions you can take, choose print shipping label. Choose USPS, and then in the 'service' drop down menu choose 'package/thick envelope' or if any dimension is over 12", choose large package. There will be boxes to input your weight and dimensions. You can also choose Parcel Post, but I normally go with Priority Mail.

You can also print labels directly from your PayPal page.



Good Luck...