With the onset of COVID, this answer has been asked more and evolving rapidly. That said, Short answer is about 2-7 days.
Long Answer:
If a piece is already made and out of the kiln, it will be shipped in 1-3 days. (Feel free to ask us what we have on hand for faster shipping)
The process of making a piece is about one day, including kiln time, so pieces we have to make will take roughly 3-7 days AFTER the order is placed. This is for planning when to make the piece, making it, annealing, quality inspection, packing and shipping.
Multiples are often made to ensure a nice piece is shipped. Any pieces that pass inspection are put in our inventory for wholesalers or following people who order the same type of item.
I hope this helps. =)