present design is one of more than a figure associated with the rotation principle of the mill shapes of traditional and milling, numbers, and to help you learn the characters experience and nostalgia with Mill ( ) standing revive the visual, auditory and tactile can typically induces an interesting use as a secondary educational institutions that can enhance the learning, dementia promote brain thinking to seniors showing dementia or Alzheimer's early symptoms and prevent aging of the brain and Alzheimer & apos; s progress with the handle 100 in the secondary treatment device can also take advantage of port to slow, in a stone mill-type game machine consisting witdol 200 and lower than 300: wherein witdol 200 has beads 212, which is input a witdol top surface that in witdol upper portion provided with a ball insert holes 213 that are moved toward witdol lower portion (210) and, with the side to be formed toward the center from the outside is formed concavely the center side becomes higher toward the witdol upper surface 210 the beads insertion hole 213 in injected bead 212 is external to the discharge so that the outer periphery of one side of the form is beads discharge hole 221 and the center of the formation, and the bead 212, the bead discharge hole 221 a instructions for hanging bead 225 is composed of witdol lower surface 220 having a central axis 223 that is coupled; The hard core 300 is provided with a hard core lower surface 320 which surface is flat to form the hard core top surface 310 which is formed convexly the center side becomes higher toward the upper side is formed toward the center from the outside, the lower than the upper the central portion of the face 310 is characterized in that provided in the central axis the central axis insertion groove 311 is 223, the insert having a witdol lower surface 200 of the witdol 200. ;
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