Come with two packs Item Series Craft Tools Specification - The cutting board is an indispensible tool for modelers. This item features a variety of markings on the face such as a useful 1cm grid, 10-degree increment angles, 1mm step ruler, curved and circular markings. The reverse is plain. - Handy and versatile A4 size. A4 measures 210 297 millimeters or 8.27 11.69 inches. In PostScript, its dimensions are rounded off to 595 842 points. Folded twice, an A4 sheet fits in a C6 size envelope (114 162 mm).