An exercising device includes a handle, at least one support member secured on the handle, at least one rotation wheel rotatably mounted on the handle, and at least one elastic cord mounted between the at least one support member and the at least one rotation wheel. Preferably, the exercising device comprises two support members, a rotation wheel and a plurality of elastic cords. Thus, the elastic cords are mounted between the rotation wheel and the support members to provide a buffering effect to decelerate the forward movement of the rotation wheel and to provide a pulling force to accelerate the backward movement of the rotation wheel so as to balance the forward and backward movement of the rotation wheel and to prevent the user from being strained or hurt during the reciprocal movement of the rotation wheel.