Mystic Rainbow Rondelle Quartz Beads 7mm-9mm (Qty=7) 7 Mystic Rainbow Quartz Rondelle Beads Transparent Medium to Large sizes, 7mm-10mm high 5mm-6mm wide Use 0.012" cord, or 28 gauge wire, or thinner, small holes Very nice sparkling light colors, hand faceted Loose for jewelry making; sizes and shapes will vary slightly