The coin can be made of zinc alloy, brass, copper, or iron.
It depends on your budget.
No matter what material it is, it can be electroplated in gold, silver, and bronze.

The coin can be color infilled, soft enamel or hard enamel.
If soft enamel, the surface can be coated with clear epoxy to protect the colors.

If you would like the coin to be fancy, we make make it with "diamond cuts"
on the edge as shown in the photo.

The standard thickness is 3.0mm, can be thicker if you would like. 
Please let me know more about the coin you would like to order.