This 14K Yellow Gold Anchor Necklace is on a 1.5MM blue leather cord. The leather is 19" long and the has a base metal lobster claw closure. There is a 2" adjustable extension chain that is also base metal. If you want this anchor on an all 14K Yellow Gold chain it comes with a spring ring closure. The anchor measures 1.83MM wide, It's 19X15MM in dimension. A perfect gift for any occasion!