Abstract: A steering wheel includes a control unit that executes an acceleration control or a deceleration control of a vehicle based on results of detections by a first contact detecting portion, a second contact detecting portion, a first operation detecting portion, and a second operation detecting portion. The control unit does not execute the acceleration control or the deceleration control based on an operation of a first operating portion when the first operating portion is operated in a state in which the first contact detecting portion is not detecting contact by a driver with a first gripping portion, and does not execute the acceleration control or the deceleration control based on an operation of a second operating portion when the second operating portion is operated in a state in which the second contact detecting portion is not detecting contact by the driver with a second gripping portion.