1 Set 14K Gold Filled 4mm Magnetic Clasp Converter For Necklaces / Bracelets Made in USA. 1/20 14k Gold Filled (stamped) with magnet. Nickel free. There is 100 times more gold in 14 kt. Gold filled (rolled gold) than in gold plated. A 14/20 Gold Filled piece is usually considered a lifetime piece of jewelry. Spring clasp is approximately 5mm in diameter. Quantity: 1 Set