These earrings are genuine turquoise and sterling silver, with a post back and butterfly clasp. The needlepoint technique involves cutting stones of like-size and proper placement to create the intriguing design. Each hand cut stone is set in a strolling silver bezel with decorative Sterling Silver accents. They measure 2" long and 1" wide. The top part of the earrings hold 6 pieces of this delicate turquoise, suspending the larger disc with a wagon wheel design in sterling silver. This technique shows extreme workmanship. These beautiful earrings will be the highlight of your collection. Each item by a Native American artist is accompanied by a Certificate of Authentication.