The nice thing about size 3/0 beads is that they will fit thicker yarns than the other beads -- if you are looking for something to enliven your worsted weights (and even some chunky ones) this is the size you want.
This is a rich blue, lined in silver. It will stand out beautifully.
Packaged in containers holding about 20g. I think there are roughly 6 beads per gram.