SAKAEテクニカルペーパー Tomoe River FP (52g/m2) Notebook by SANZEN, 5.85" x 8.27", 368 Pages (184-Sheet), Hard Cover, 5mm Squared, Thread-Bound, White (SR-A5HBW)Hardcover notebook journal with premium grade 5mm square grid: 'New Sub Dot Grid' method adopted Lines and Dots are composed of a collection of invisible sub dots. By creating space in the lines and dots, ink will absorb better with less ink repelling on the paper. International Design Patented. A5 paper (8. 27" x 5. 85"), white color grid paper, 368 pages (184 sheets) Super lightweight at 52Gsm half the thickness of copy paper Fountain pen and ink