I bought ours at Home Depot. It is braided reinforcement thread in a gold-tone plastic hose. I had a metal-wrapped one, and it would un-twist when water pressure was applied, enough to kink it at first, then I'd have to unwrap it to continue with my shower. Then when I shut the water off it would twist up the other direction.
P.S. That hose at Amazon costs as much as the entire shower head and hose at Home Depot.
2000 Winnebago Ultimate Freedom USQ40JD
, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert theConstitution. "Abraham Lincoln"