18-20" adjustable tubular gold plated brass metal-mesh chokers. Diameter is approximately 3mm round. The metal mesh is slinky like chain, not stiff. High quality. These chokers are finished with a lobster clasp and 2" extender chain.
I am very happy with this product (I ordered in silver and gold). It looks great with my pendants, is a good length (with the 2" extender), and is wearing very well. I haven't had any issues. For the price, i think they are perfect.