What you get - 3 packs of chequered refill paper set, 45 sheets per pack, total 135 sheets - Standard size: 8.26 x 5.59 inches (210 x 142 mm), 5 mm grid spacing - A practical choice for office gifts or personal use Standard 6-hole design - A5 size with a 6-hole format that fits A5 6-hole folders - Each sheet is easy to remove and insert - 5 mm grid squares suitable for writing, quick sketching, and diagrams Eye care and smooth feel - Made from safe materials with no fluorescent whitening agents - Milky white paper reduces eye strain; traditional appearance - Paper is 100 g/m², ink resistance reduces bleed-through; writing feels smooth Easy to disassemble - Open the notebook folder to replace the paper - Erase, add, or rearrange pages with ease - Compatible with all inks, including gel pen, ballpoint, fountain pen, and pencil Use scenarios - Office: plan projects, take notes, and sketch quick diagrams during meetings - Study: organize math notes, formulas, and layouts with the grid - Design and planning: create wireframes, layout sketches, and schematic diagrams on the go