Material: High quality genuine real matte black onyx loose gemstone, unpolished natural beads for jewelry making Size: 8mm round matte black onyx beads hole diameter: 1mm. White crystal stretch cord: 0.6mm, 32Ft. Qty: 100pcs. Enough to make 4pcs bracelet. Condition: All stone ball beads are 5A grade top quality gemstone beads. Smooth Excellent Polishing Note: Each natural stone is unique and has its own featured texture, so the beads you receive will be a little different from the pictures. Uses: Semi-precious gemstones beads are excellent for beading, jewelry making, jewelry design, DIY crafts, handcrafts, necklaces and healing reiki chakra energy bracelet.