Hi Hiroyuki, The plate is double boxed & ready to ship. The First Class Mail cost of shipping to Japan is 14.75. It would not be insured or trackable & would take several weeks or more... sometimes as long as a month. Priority Mail would cost 38.65. You would get tracking info with this service & it would take 6-10 days to arrive. (There's insurance, but my guess is that it would be difficult to collect on, as the package is only insured for USA damage or loss.) Let me know which method you prefer & I'll resend the invoice for shipping to Japan. Best wishes, Marcia
よろしくお願いします。
Marcia