Sold on a per bead basis.
Bead has an etched effect, which makes the bead sparkle a little.
Would cost and weigh a fortune if it were actually metal.
Instead, you get the look of a big bead (no one will ever be able to tell it has a plastic core unless they feel the weight of it), for a fraction of the price.
The metallized coating is extremely hardy and very difficult to remove.
Has a hole through the center for threading.
Bead is 16mm in diameter.

Click on the photo to see a different enlarged photo against a ruler.