All of my products ship priority mail. Priority mail EXPRESS is like priority mail, but with a 24 hour service guarantee. What I find is generally true is that from the day I mail it, it gets to you in 48 hours if we ship EXPRESS. You can add this item to your order to upgrade your shipping speed from priority mail (2-3 day) and no guarantee, to 48 hours guaranteed. This is not an item by itself. Adding this to your order upgrades the shipping from standard priority mail to Priority Mail Express. See USPS.com for differences in their service guarantees .Follow us!