CADUCEUS 18" Necklace is Embellished with Clear Crystal Rhinestones & 2" long. Caduceus is a Medical Symbol-Winding Snakes on Rod with Wings.Beautiful! CADUCEUS 18" Necklace is Embellished with Clear Crystal Rhinestones & 2" long. Caduceus is a Medical Symbol-Winding Snakes on Rod with Wings.Beautiful! Arrives in Organza Gift Bag