Non genuine chrome fluted trim - a silver version of the genuine GZF105A. They are hard enough to fit anyway but warming them up slowly to get supple is the best answer. Using a hairdrier on the sharp bends of the bodywork helps get the correct shapes also.
PLEASE NOTE-current legislation forbids the use of chrome foil on plactic and
ended manufacture of the genuine article-these are silver but appear the same
unless you are entering a concours competition.