I was extremely disappointed in my 2mm 24" snake chain.  I have bought several pieces in the past from Silver Insanity, but it seems they've decided to cut corners.  I would be surprised if this chain measured ONE mm let alone 2.  I have other 2 MM chains and this one is HALF the size.  It feels very light.  Not at all what I'd come to expect quality wise from Silver Insanity.  I will not buy anymore silver from them.