use description like:
for single prosthetic leg:
Her most striking feature is a modern prosthetic leg consisting of, from proximal end to distal end: a white socket covering her residual leg, silver-colored metal pylon, a metal hinge mechanisms and a black carbon fiber blade designed like a stylized “J” curve which terminates at a thin, flexible toe pad
for double prosthetic leg:
Her most striking feature are the two modern prosthetic legs, both consisting of, from proximal end to distal end: two carbon fiber sockets covering her residual legs, silver-colored metal pylon, two metal hinge mechanisms and two black carbon fiber blade feet designed like a stylized “J” curve which terminates at a thin, flexible toe pad bearing faint white lettering