Operation lever

An operation lever comprising:

• four rods including a pair of rods, disposed at point-symmetrical positions in a first direction and a second direction opposite to the first direction with respect to an operation axis, and a pair of rods disposed point-symmetrically in a third direction orthogonal to the first direction and the second direction and a fourth direction opposite to the third direction with respect to the operation axis;
• magnets disposed, respectively, on the rods;
• magnetic guides formed of a magnetic material and disposed, respectively, around a portion where each of the magnets moves;
• and
• magnetic sensors disposed inside the magnetic guides and disposed at line-symmetrical positions with respect to a second straight line perpendicular to a first straight line connecting centers of one of the rods and the other rod, which oppose each other with the operation axis as a center among the four rods, on a plane perpendicular to the operation axis,
• wherein each of the magnetic guides guides a magnetic field of the magnet disposed therein to suppress the magnetic field from leaking to an outside of each magnetic guide.