A field "fretty" is composed of bendlets and bendlets-sinister or "scarps", interleaved over one another to give the impression of a trellis. Although almost invariably the bendlets and scarpes are of the same tincture, there is an example in which they are of two different metals. It is rare for the number of pieces of the fretty to be specified, though this is sometimes done in French blazon. The bendlets and bendlets sinister are very rarely anything other than straight, as in the arms of David Robert Wooten, in which they are raguly. Objects can be placed in the position of the bendlets and bendlets sinister and described as ""fretty of,"" as in the arms of the Muine Bheag Town Commissioners: "Party per fess or fretty of blackthorn branches leaved proper and ermine, a fess wavy azure".