This is a really neat link- the rings are approx 3.5mm in diameter, the bars with sleek, organic curved edges are 2mm wide and 11+mm long. A solid antique chain , 12.6g, 14k gold, with a crispy bolt on one end and a dog clip on the other. 14.5" long.

I usually struggle with chains this length on the neck unless it's extended with other bits, but was won over by the way it fits, especially because it makes for a comfortable bracelet too- and a charm can be added to the end. Other chains and charms  for style purposes only.