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Various sizes and quantities available, 27 x 27, Each a large board with 1cm squares and 729 pins which is ideal for block graphs 11 x 11, Each 2cm squares on one side and isometric on the reverse 6 x 6, Each 3cm squares on one side and a circle on the reverse, These useful and versatile pin boards can be used for demonstrating geometric concepts, introducing the naming of shapes, working out areas, symmetry work and representing fractions. Complete with elastic bands.
