Standard loose-leaf Refills- International 6-rings ruled paper, easily take out and in, double side ruled clear black line paper, 8 mm ruled, 20 lines each page. Thick Paper and Soft Feeling- 100 gsm paper is thick enough for writing by Fountain Pen, you also can use Ballpoint Pen, Gel Pen, Roller Pen, Pencil, Highlight Pen, no easily bleed and writing smoothly.
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