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Rough and Smooth Boards Set
This set of 3 boards forms the introductory materials for development of the tactile sense and prepares the hand for writing. The first board introduces the contrast of rough and smooth. The second board helps to coordinate finger movement and builds dexterity. The third board introduces gradations of texture from fine to coarse. Each board is 24 x 13 cm with sandpaper strips mounted on smooth wood.