Unique and fun BOHO necklace.  Vintage.  The beads are mounted on chain link.  There is a 3" smaller chain attached at the back to allow you to adjust the length if necessary.    The plastic beads are a heavier plastic than you see in today's jewelry.  They have really large holes so that they slide around the other beads and create a bubble effect.  Excellent condition.  16".  Lobster claw clasp.