A roll of plastic trim with shiny silver "chrome" insert to cover the rain gutter. It works best with pre-1979 cars which did not come with a rain gutter trim. Due to European manufacturing restrictions, the finish is best described as shiny silver. Length is long enough for one Saloon (Sedan), not for long wheelbase models.
See also MT633 for black version, or YGA1106 (right) or YGA1107 (left) for original Rover black trims.