To stably obtain accuracy in rotation even at a high speed by mount ing an attachment made of a net member or woven fabric, inside a cylindrical shell made of a fiber reinforced plastic.

A thermosetting resin is fixed in a state that a net material is entangled by the thermosetting resin when a weight is fixed to a neighborhood of a central part of a roll shell 1 by a thermosetting resin and the like for correcting the balance, or when the thermosetting resin itself is used as a balance correction weight 4. By combining the woven fabric such as glass fiber and the thermosetting resin of low viscosity, the woven fabric is impregnated with the thermosetting resin. Accordingly the balance can be surely corrected by three sides correction and four sides correction, even after the surface of the roll is treated by plating or rubber coating, and the whirling of a long roll and a high-speed rotary roll can be prevented.