It’s not that complicated, if it is whole black it will be a plastic freewheel
There you are:
https://strida.ru/catalog/?id=75
https://strida.ru/catalog/?id=151
It’s not that complicated, if it is whole black it will be a plastic freewheel
There you are:
https://strida.ru/catalog/?id=75
https://strida.ru/catalog/?id=151