[18 carat gold] Authentic 18k gold, made of 75% gold and 25% alloy, smooth surface, is the purest and strongest form, imprinted 18K/Au750 quality mark. Non-polluting, nickel free, hypoallergenic.
[Measurement] Width :3 mm. Chain length :6.5 "+1" gold adjustable chain extender,7.5 ". Weight: 2.25g, simple but elegant, comfortable to wear.