Price listed is for one ounce of acrylic beads. These are mixed black diamond acrylic square beads. They range in size from about 12mm to 13mm. They are flat on both sides with a hole drilled through the length of the bead. The holes of these beads measure approximately 0.86mm but sizing may vary from bead to bead. There should be about 30 beads in each ounce.