I don't have a guess? Nearly an inch.

[Wolf]

A CAC or MFC of some sort? It doesn't look modern. 

[manddrakes]

clay marbles.

[Chad G.]

A woman made these, can't remember her name right now but theses aren't polymer, they're heavy, man I can't remember anything tonight.

[Wolf]

50 minutes ago, Chad G. said:

A woman made these, can't remember her name right now but theses aren't polymer, they're heavy, man I can't remember anything tonight.

What's the difference between polymer and heavy?

[Chad G.]

17 minutes ago, Wolf said:

What's the difference between polymer and heavy?

Polymer marbles feel like air and the one you have pictured is made of a type of clay that's heavy and then fired i believe @cheese  help, my mind is shooting blanks tonight

[cheese]

Laura Berretti 😉

[Chad G.]

Just now, cheese said:

Laura Beretti 😉

Told ya my brain was on the off position tonight. thanks man 

[cheese]

Happens to us all!

[Fire1981]

Yep🔥

RAR