This is the way I interpret it:
He is talking about the material of which the balls are made, not the balls themselves. And he doesn’t finish his sentence. He would have said something like “Not necessarily in the round (spherical) form/shape/version.
I actually can’t make out what is said after “any on these coming up”.
I’m not sure of this, but perhaps what he means is “Any of these shapes (the ones in the drawings he holds up) coming up?”=any of these shapes going to be available (made of the material in question) soon?