Evergreenknits wanted to know how much wool went into the felted balls (they're still in the same state...I haven't decorated them).
I had 2 oz of roving to start.
The largest of the individuals balls (the teal in the center) is .2 oz (6g), with the average sized ones not even registering on my kitchen scale. The whole collection below weighs 1.4 oz and have .6 oz leftover that I didn't ball up yet.
I hope this information helps!