This Botswana Agate is made of nicely striped greys, creams and browns (no pink/oranges are present in this supply). Each bead is 6mm in diameter and approx.4mm thick. There is some variation in thickness but for the most part these Heishi beads are uniform giving you about 50 beads in a half strand. This is some nice quality Botswana Agate -- a stone that is starting to be harder to find.