You can exercise the patience and perseverance of children, control the movements of fines and the judgment of choice. It is a kind of educational toy that can allow children to grow up at play. The main standard of brick wall masonry can not have up and down through the seam to ensure that the masonry is firm, so the brick masonry must follow the principle of up and down seam, the Child observes, the brick wall that we build, must be built by mistake between top and bottom brick seam
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