This Adorable Sea Glass Bracelet adjusts to fit wrists from 7 to 8 inches. You can wear it snuggly so the shell stays where you want it, or wear it loosely, your choice. The Sea Glass is man-made and has a Matte finish. The string is made from a nylon cord with an additional covering to make it long lasting. The Metal spacer beads are "no lead" SP metal.