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.
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2000 Winnebago Ultimate Freedom USQ40JD
, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA.
" My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy