To allow for alignment by easily moving the small diameter cylindrical portion of a grommet being fitted over a metal pipe, into which a wire harness is inserted.

In a grommet molded of rubber or elastomer and having a small diameter cylindrical portion, being brought into tight contact with the outer peripheral surface of an exterior material including a metal pipe or an attached material consisting of a wire harness, and a large diameter cylindrical portion continuous to the small diameter cylindrical portion, pulling protrusions (10) are protruding from at least two positions on the outer peripheral surface of the small diameter cylindrical portion opposing in the diameter direction.