They are also called Grindshoes. I also never had one of these but I am also thinking about buying a pair.

That is what they always tell you. Do your own research.

This must be the worst copied image ever. The mouse pointer is visible, the artists name it cut. Why not just show the whole picture like here https://nla.gov.au/nla.obj-148723203/view ?

He was young and needed the money.

Sure, but does it have electrolytes?