They are adult Fidget rungs that helps with Stress relief and anxiety. These rings are handcrafted with 2-3 mm faceted natural gemstones and solid copper or silver beads. The beads and material used are high quality. They are Minimal, stretchy and stackable. Select from 2 different styles : with silver bead or copper bead The ring size comes assorted. If you are looking for a particular ring size, please let me know.