Providing correctors that can be mounted without applying excessive force to the nail and can be appropriately used for correcting nails having different dimensions. It has a left arm and a right arm provided with hooks on the side edges of the claws at the free end, and a fulcrum member between the left arm and the right arm and having a lower end abutting against the claws. The fulcrum member includes a shaft body that is combined with the base body so as to be able to advance and retract in the vertical direction, a movable body that is combined with the shaft body so as to be movable up and down, and the contact portion is disposed below the shaft body, An urging member for the movable body interposed between the movable body and the shaft body is provided. The abutting portion is long in the left-right direction, and has protrusions at the left end and the right end, respectively. The abutting portions are in contact with the claws, and are not in contact with the nails between the left and right protruding portions.爪に過剰な力を作用させることなく装着可能で、かつ、寸法を異にする爪の矯正にそれぞれ適切に利用可能な矯正具の提供。 自由端に爪の側縁部への引っかけ部を備えた左側アーム及び右側アームと、左側アームと右側アームとの間にあって下端部を爪に対する当接部とした支点部材とを有している。支点部材は、ベース体に対し上下方向に螺進退可能に組み合わされた軸体と、この軸体に上下動可能に組み合わされてこの軸体下に前記当接部を配させる可動体と、この可動体と軸体との間に介装されたこの可動体に対する付勢部材とを備えてなる。当接部は、左右方向に長く、左端と右端とにそれぞれ突出部を備えこの突出部をもって爪に当接され、左右の突出部間においては爪に当接しないようになっている。
