Abstract: A shield for a string trimmer using a rotating flexible cutting element defining a circular perimeter including:a base wall generally parallel to the plane of the rotating cutting element and having a rear portion; andan arcuate rim member extending downwardly from a portion of the base wall, the rim member and the perimeter defining a pair of oppositely directed volute pathways each terminating in an opening, each of said pathways having a minimum width adjacent to the rear portion of the base wall which gradually increases in width from the rear portion to the opening.