US Postal Service - Priority Mail
This is the *additional* amount you need to pay in order to expedite shipping to Priority Mail.
Fresh Designs automatically ships packages via First Class mail. The charge for First Class Mail is automatically added to the cart for the first item you purchase (all additional items ship free).
It's been my experience that First Class packages generally reach my customers within 3-4 days of purchase. The Post Office doesn't guarantee this, though.
If you are on a time-sensitive schedule, you might want to consider upgrading shipping to Priority Mail Flat Rate shipping: Delivered in 1-3 days (depending on where you live).