We can ship to Canada but elsewhere customer should contact freight forwarding company in US.
Yes, we ship by USPS.
Yes, we accept all major credit cards.
There is no minimum dollar amount.
It depends on item.
For example, all dozen pack item’s minimum unit is 1.
But if you want to order item#8728 Black Medium, the minimum is 3pieces.
Mostly 2 Small, 3 Medium, 4 Large, 3 X-Large is a combination.
But it could be 3-4-3-2 or 3-3-3-3 also.
4 dozens are in a small box, 12dozens are in a carton.