What's a 50-coin kobox? What country is kobo? How much is it converted into RMB?

At present, Kaubao and Nyala are currency units in circulation in Nigeria. Kobo is the unit of Nigerian token, and 50kobox is 50 kaobao, which is 0.5 naira.

Since the Nigerian naira can't be directly converted into RMB, it can be converted into 1 naira, which is about 30 cents, so 50 test packages are about1.50 cents.