GROMMET

A grommet () according to an aspect of the present disclosure includes a grommet body () and a sound insulating wall (). The grommet body () includes a first tubular portion () and a second tubular portion () configured to pass a wire harness (W) therethrough and a seal portion () configured to come into contact with a peripheral edge of an attachment hole (Pa). The grommet body () includes a first sound insulating space (S) therein. The sound insulating wall () extends radially outward from the first tubular portion (). The sound insulating wall () is configured to be capable of covering an insertion hole () in a sound insulating member () provided on one side surface of a vehicle body panel (P). The sound insulating wall () forms a second sound insulating space (S) between the sound insulating wall () and the grommet body ().