Brand New Knights of Columbus Rings Gold-Tone Metal with Black Antique Finish with Clear Simulated Stones 316L Stainless Steel Ring Size 10 Ring reads on one side "In Service To One" and the other side reads "In Service To All." 316L Stainless Steel Jewelry Our precision crafted stainless steel jewelry is 316L surgical grade stainless steel. While not considered a precious metal, it is much more durable than silver or platinum. This durability is due to a Chromium coating that is chemically bonded to the steel. The invisible coating protects the steel underneath from oxidation (tarnishing and rusting). It also protects against scratching by taking the initial impact of a scratch and then resealing itself. This process, called passivation, is the spontaneous formation of a hard non-reactive surface film that prohibits further corrosion.
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