Reality Cables made of?

Just saw a post over on AudioCircle wondering whether there's any relation between Reality Cables and THHN wire. Don't know if there's anything to it at all, but the photos on these two websites do look kind of similar.

www.realitycables.com/index.html

www.wiringproducts.com/index1.html

Note that the THHN code refers to thermoplastic, nylon-sheathed, and PVC-covered wire.