A variable grip structure has a shaft body formed of plural shaft portions that are rotatable relative to one another. An elastic finger-grip member encircles the shaft body and has its forward and rearward ends fixed to different shaft portions so that relative rotation of the shaft portions elastically twists the finger-grip member about the longitudinal axis of the shaft body. This construction makes it possible to adapt the shape of the finger-grip member to the hand size and shape and the preference of the user.