Please find attached the information from Khun Oil. These are the exact balls that we need please. If you are able to get as many as budget allows. We have two balls and Thanyapura have two balls. It is quite expensive and I don't know how much they are from Bangkok.
Buying them from Australia will cost an excess. And I just priced them and they are the same price. In the USA, they are half that price.
So we may as well get them here.