How do you use a jade facial roller?

[Appalonia]

I recently bought one but not sure how to use it. Wondered if anyone has one, what do you do with it, and what products do you use with it?

This is a good video. Did your jade roller come with a gua sha tool as well?

Thanks for that video. Have no idea what the other thing is! I just bought it in a shop in Dorset.