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Kokuyo Spiral Graph Notebook, 7.2'' x 5'' Business Journal B6 Soft Ring Notebooks with 5mm Grid Ruled, 70 Perforated Sheets, Black 1 Subject Notebook, Note Taking for Work. Japan Import (SU-SV447S5-D)
Amazon.com : Kokuyo Spiral Graph Notebook, 7.2'' x 5'' Business Journal B6 Soft Ring Notebooks with 5mm Grid Ruled, 70 Perforated Sheets, Black 1 Subject Notebook, Note Taking for Work. Japan Import (SU-SV447S5-D) : Office Products