A switch that is provided with a plunger configured to linearly move from a reference position to an operation position in response to an operation performed on an operation portion, and that is configured to open and close contacts according to the movement of the plunger, the switch comprising: a first torsion spring and a second torsion spring that are configured to bias the plunger in a returning direction from the operation position to the reference position; and a fixed contact, and a movable contact configured to move together with the plunger, the fixed contact and the movable contact serving as the contacts, wherein a plane includes an axis that passes through a central portion of the plunger and is parallel to a direction in which the plunger moves, and is perpendicular to a perpendicular line connecting the movable contact and the axis, the first torsion spring is arranged on one side of the plane, and the second torsion spring is arranged on the other side of the plane, wherein each of the first torsion spring and the second torsion spring has an arm that extends to the plunger, and abuts against the plunger, the arm of the first torsion spring and the arm of the second torsion spring are provided so as to be symmetric with respect to the axis, and the arms, when viewed in the direction in which the plunger moves, extend in a direction that is perpendicular to the plane, characterized in that: a front end portion of the arm of the first torsion spring abuts against the plunger on the one side of the plane in the reference position, and is located on the other side of the plane in the operation position, and a front end portion of the arm of the second torsion spring abuts against the plunger on the other side of the plane in the reference position, and is located on the one side of the plane in the operation position. a first torsion spring and a second torsion spring that are configured to bias the plunger in a returning direction from the operation position to the reference position; and a fixed contact, and a movable contact configured to move together with the plunger, the fixed contact and the movable contact serving as the contacts, wherein a plane includes an axis that passes through a central portion of the plunger and is parallel to a direction in which the plunger moves, and is perpendicular to a perpendicular line connecting the movable contact and the axis, the first torsion spring is arranged on one side of the plane, and the second torsion spring is arranged on the other side of the plane, wherein each of the first torsion spring and the second torsion spring has an arm that extends to the plunger, and abuts against the plunger, the arm of the first torsion spring and the arm of the second torsion spring are provided so as to be symmetric with respect to the axis, and the arms, when viewed in the direction in which the plunger moves, extend in a direction that is perpendicular to the plane, a front end portion of the arm of the first torsion spring abuts against the plunger on the one side of the plane in the reference position, and is located on the other side of the plane in the operation position, and a front end portion of the arm of the second torsion spring abuts against the plunger on the other side of the plane in the reference position, and is located on the one side of the plane in the operation position.