GROMMET

A grommet according to one aspect of the present disclosure includes: an annular mounting portion that is to be fixed to a surrounding portion of an insertion hole of a vehicle body panel; and a tubular stress-absorbing portion that includes a tubular side wall that extends from an inner circumferential rim portion of the mounting portion toward one side in an axial direction, and a bottom wall that partially closes off the tubular side wall at a front end of the tubular side wall. Furthermore, the grommet includes tubular insertion portions that are provided integrally with the bottom wall, and that cover the outer circumferences of wire harnesses inserted into the insertion hole. The mounting portion includes an annular seal portion that comes into close contact with the surrounding portion of the insertion hole of the vehicle body panel. The side wall is flexible.