You are purchasing an entire strand. I measure them as 14 inches long and I counted over 70 beads on each strand. The beads are all glass. No plastic. Sizes of the larger ones are about 10mm in diameter the little ones around 3mm. They are strung on heavy monofilament line. You could just add a catch and have an instant necklace, or several bracelets, Break them up and use as earrings, or use as spacers and fillers in your other designs. The beads are all similar you can see what they look like in the photos bright colors.