Abstract: A grommet includes: a small-diameter cylinder portion through which a wire harness is inserted; a large-diameter cylinder portion including a harness draw port provided at a tip of the small-diameter cylinder portion and configured to draw the wire harness to an inner side of a panel, and an annular attachment recess fitted into a mounting hole of the panel; and a harness regulator protruding inward from a peripheral edge of the harness draw port of the large-diameter cylinder portion and configured to regulate a routing path of the wire harness by directing the routing path to either a left side or a right side.

Abstract: A reinforcement is bridged between left and right front pillars of a vehicle, and includes: a first pipe arranged at a driver-seat side; and a second pipe having a diameter smaller than a diameter of the first pipe and arranged at a passenger-seat side. A protector is attached to the reinforcement and accommodates a wire harness routed along the reinforcement. An instrument panel is held by the reinforcement and arranged between the left and right front pillars. In a case where a driver seat is positioned on a right side of the vehicle, a locking portion on a right side of the protector is locked in a mounting portion of the first pipe. In a case where a driver seat is positioned on a left side of the vehicle, a locking portion on a left side of the protector is locked in the mounting portion of the first pipe.