Silver 10 mm Round Hoop EarringsSilver Hoop Earrings These round hoop earrings are crafted from polished sterling silver and measure 10 mm in diameter. For secure and simple wear, they are equipped with a hinged saddle back fitting that clicks firmly into place once passed through the ear. The polished finish gives the sterling silver a bright, reflective quality. For those who prefer a slightly larger size, this design is also offered with a 15 mm diameter.