Provided is an device for stabilizing the center of gravity and/or correcting distortion of the body simply through wearing of the appliance on a toe and conducting normal activities. The following invention is provided by the present invention. A cylindrical correction device that corrects distortion of the body, wherein: the correction device has inward-facing triangular-prism-shaped protrusions on the inner circumference； the triangles are inclined in one direction with respect to the circumference； and the correction device comprises a cylindrical elastic material having a diameter of 7-20 mm, a width of 5-10 mm, a thickness of 1-3 mm, and a hardness of 4-6.
