With this second order, the product could be imported into Japan in about a week.
The last import license arrived three weeks later.
However, when a colleague placed an order, it stopped at customs and was destroyed for some reason.
After checking, it can be stopped by customs depending on the purpose of use.
It seems that there is no problem in using and possessing it if it is used as a toy.
Please be careful if you are thinking of importing to Japan.
The product is very sturdy and will not break even if handled with some care.
Personally, I highly recommend this product.