This type of chain has curb/ircular links interlock and lie flat close together. It truly have a masculine look and they are picked mostly by men than women.
Curb chains come in different widths. These links are wider if you need to compare this kind of link chain with other type of chains. Thery are usually most resistant chains out there and the wider they are the stronger male personallity user think he has, it actually makes sense right?