Upgrade Your Previously Purchased Shipping
Use this option to upgrade shipping on a previously purchased item. This does not increase your processing time, it only increases your shipping time.
Priority shipping is a 2-4 day ship time according to the USPS. They do not guarantee the ship speed.
UPS 2nd Day arrives in 2 days and is a guaranteed shipping service.
Express shipping is 1-2 days and they do guarantee the ship speed.