Gasket ID Help

Hey FABO,

I ordered a timing cover and water pump kit from Mancini Racing. It came with a gasket set. I understand that I don't need all of the included gaskets, but there are a few I don't know what they are for, and I don't wanna miss any.

I called Mancini, but they were not much help.

Can anyone ID these gaskets?

This is 4" across...
IMG_20211001_140410375.jpg

This is very rigid, feels like it has a metal inner core, about 3" across. There are 2 other paper water neck gaskets in the kit, so I wasn't sure if this is just another water neck option...
IMG_20211001_140417509.jpg

No idea what this one is...
IMG_20211001_140357941.jpg