To display information appropriately without making an occupant feel annoyed, a steering operation element 10 of a vehicle 2 includes a hub part 31 provided rotatably with respect to a vehicle body 15; an extending part 32 extending radially outward from an outer circumference of the hub part; an outer edge part 33 provided on an outer edge of the extending part; a display 40 provided on the hub part; at least one first light source 27A provided on the extending part; and an interface control device 41 configured to control the display and the first light source, wherein the interface control device is configured to cause the display to display an image corresponding to at least one of vehicle state information indicating a state of the vehicle and environment information indicating a surrounding environment of the vehicle.