first opening and a second opening and through which a longitudinal member is inserted and a seal part formed at the intermediate section of the insertion path which contacts with the outer circumference of the inserted longitudinal member a discharge path is provided on a side wall section of the insertion path and connects from the side surface of the side wall section to a section of the insertion path which is closer to an inflow opening through which flowing water is likely to flow than the seal part is to the inflow opening the discharge path is structured in communication with a gap formed between the outer circumference of the longitudinal member and the inner surface of the insertion path which allows for inflow of flowing water along the direction in which the longitudinal member is inserted application_number US 201515522923 A description hereinafter an embodiment of the present invention will be described in detail with reference to the accompanying drawings fig1 is a top view illustrating a grommet according to an embodiment of the present invention fig2 is a cross sectional view taken along line a a of fig1 note that alternate long and two short dashes lines in the drawings represent control cable 1 a long member refers to control cable 1 in particular outer casing 1 o control cable 1 includes inner cable 1 i and outer casing 1 o covering this inner cable 1 i however the long member is not limited to any particular configuration and may be inner cable 1 i a power transmission line a communication line and or the like for example as for the long member it is.