This is a Silver Tone Dual Link Chain approx. 3.75mm sized links or 9 links per inch and is sold in 2 foot lengths. This is a nice length that allows you to put over your head without using a clasp. This chain is made up of two individual rings attached to two more rings through the entire length which makes up the chain. It is a chainmail chain. If you purchase more than 2 feet of chain in the 2 foot increments, I can either cut it or leave it one continuous length. If you do not convey how you'd like your chain, you will receive it as one continuous piece. Most of my chain auctions come off of spools marked from the 1970s. Shipping for chain lots will be an additional 10 cents per lot. Combined shipping will apply but you will pay for the higher price shipping charge.