You are purchasing:

(1) Kazuri Bead

This solid black bead is from the Black and White color family and the Jazzy Design family, a true staple.
As each of these are handmade, the size varies slightly, but this bead is approximately 6-7mm in diameter.

The second picture shows all of the beads that are from the same design family, but you are buying one 6-7 mm black Kazuri bead. >br>
Kazuri means small and beautiful in Swahili and that is the absolute best description of these beads.