It consists of x2 18awg premium grade PE (PolyEthylene) insulated color-coded stranded (19x30 stranding) tinned copper twisted/cabled conductors, wrapped in a Flexfoil shield (100% coverage aluminum foil/polyester tape backing with min 25% overlap and foil side facing out), with stranded tinned copper drain wire, all in a gray PVC (PolyVinyl Chloride) jacket.
eBay