We put great pride in our shipping, services and authenticity (see our reviews!). We guarantee 100% authenticity on all our products and the passing of any third party authenticator / certifier (TPA). We ship USPS PRIORITY. If you have any questions, please feel free to shoot us a message at any time. Inbox us about any lot, SGAs, bobbleheads, tickets, autographs and memorabilia (jerseys, bats, photos... you name it). We have an abundance of everything with a lot more to be listed in the near future. -wedressyouup //