"Gold Plated and 925 Sterling Silver beads. You can use it solo as a choker or put a charm on it. You  can also layer  with other necklaces.  Details: Bead Size: 4 mm 2\" Extension chain to adjust" Adjustable Chain Necklace With Round Tiny Beads, Adjustable Silver Beads Choker Necklace, Dainty Choker With Round Gold Beads, Silver Beaded Choker As A Gift, Adjustable Gold Choker With Round Beads, Everyday Pearl Necklace With Tiny Beads, Everyday Pearl Necklace With Tiny Round Beads, Dainty Gold Jewelry With Silver Beads, Adjustable Pearl Necklace With Round Beaded Chain