i am thinking of doing some needle felting and i am trying to figure out how much 4 oz of roving really is. I honestly have no concept of size and weight so just seeing a ball of it online doesn't really help me too much. For example....let's say I wanted to needle felt a baseball (yes i know i can't i am just talking size) approximately how many baseballs would 4 oz cover? would it even cover one?
also, does anybody know of good reliable sources for roving materials online? my LYS only has white and black and i already have those for another project that appears to be perpetually on the needles.