Yikes!

 

Get a zaino one. or a meguairs.

 

meguairs is about

 

Go directly to Meguiars at Meguiars and put clay into the search field at the top of the screen.

I used this recently, it's only

 

I will admit. I have, in the past, purchased some of this.
I still have it and it's still going strong.

I have, recently, brought some of the Meguiars, but I've not had chance to try it.
I can't imagine it'd be that different, so I'd go with the Meguiars.

 

Must be Porcelain clay instead of yer common or garden school clay