black labradorite round bead 4-6mm 15 inch hair
1.15.5 inch = 39.5 cm = 395mm
2. how numerous beads in a 15.5 inch strand?
discover the hole length of each bead, generally the max figure in the size description, use 395mm to divide this hole lenght figure. Example: 10mm round bead, the hole length 10mm, 395mm/ 10mm = 39.5 beads