A connection end portion of an inner member is provided with engagement projections and a connection end portion of a stay is formed with reception grooves that are capable of axially receiving the engagement projections. When operation cable is axially inserted into a cylindrical support, the engagement projections are axially received in insertion grooves and are then transferred to terminal end positions thereof that are bent in one circumferential direction by a spring force of a spring member, so as to be elastically retained therein. When the stay is axially inserted into the cylindrical support in this condition, the engagement projections are axially received in the reception grooves and are then moved to terminal end positions thereof that are bent in the other circumferential direction. As a result, the operation cable is positioned in a condition in which the operation cable is suspended in the stay.