Overview: Top Quality Black Spinel Beads Type: Natural Stone Shape: Rondelle Length: 15.5 inches Bead hole size:1mm Beads Sizes: Number of Beads/Strand: 2x3mm- about 183pcs/strand 2x4mm- about 183pcs/strand 3x4mm - about 140pcs/strand 3x5mm - about 140pcs/strand 4x6mm - about 95pcs/strand Usage: For bracelet, necklace, or other crafts, jewelry makings ***Please conv. me if you need quantity discount.