NWT diamond-cut detail hoops in solid sterling silver, not silver plated & not silver filled. Also, I've rhodium-plated these for a bright white finish. Diamond cut details beautifully catching the light. See photo 2. 2.5 inches or 61 mm in size. 3/4 inch thick. These are somewhat stout, but they will bend. Also, the diamond-cut detail and mm size give them sturdiness. Friction backs are heavy and sterling silver also. This is my lowest price. Other sellers list these for $69.00. FIRM PRICE!