Inspired by Celtic knots, this necklace refreshes the iconic symbol with a Hercules knot dating back to the 2nd century – where the knots “embrace.” Our silver items have a protective lacquer finish to help prevent oxidation. To care for our silver items, simply wipe down your pieces with a dry, 100% cotton cloth. Keep them away from water, jewelry cleaners, silver cleaners, treated polishing cloths, perfumes, hairspray, lotions, hand-sanitizers and make-up. We offer our own that you can safely use.