a slang term referring to all metal/stones/plastics/etc worn by a person or person(s). Essentially, a plural term for "jewelry" to encompass all the different types of jewelry one may wear.
jewelry ice diamonds silver gold stones
Sentence 1: *See's punk rocker, wearing metal choker, onyx rings, plastic arm band.
"Dude, love the look! and your hardware is dope!"
Sentence 2: *Sees woman in dress with metal piercings in ear, and rubber wrist bands
Hey, loving your dress and your hardware.