A clothes washing machine includes a spin basket on which dynamic balancers are arranged. Upper and lower balancers are mounted on the top and bottom of the spin basket, respectively. Each of the upper and lower balancers includes a plurality of separate coaxial chambers. Viscous oil and movable balls are disposed in each chamber. The chambers of the upper balancer are arranged one above the other and the cross sections of those chambers (as well as of the balls) become larger in an upward direction. The chambers of the lower balancer are arranged horizontally next to one another and the cross sections of those chambers (as well as of the balls) become larger in a radially outer direction.