Our 8X3 MM sergeant cut Rainbow metallic silver hematite stone string is 40 CM long and there are 90 natural stone beads in the string. Due to the structure of the product, light-induced reflections occurred on the product during photography. There are no marks or stains on the product. You can use the product as an intermediate material or apparatus in necklace making, jewelry design, bracelet design, etc. and design jewelry models that can be used by both men and women.