Key orders are processed within 1-3 business days after confirmation is received (large quantity orders may take longer) and then mailed out with the Postal Service. Arrival would depend on where you are in the world. If you are inside the US it can take 2-5 business days. Outside the US can take approximately 15-20 business days.
They are mailed out in a small padded envelope and no tracking service is available for them.