NIUTOP 24 Packs Student Ruler Wood Ruler Wooden School Rulers Office Ruler Measuring Ruler 2 Scale,30 cm and 12 Inch (24 Packs Wood Ruler) (Bullet Journal Stencil) RULE WITH 2 SCALES: 12 inches scales and 30 cm metric scales, makes it convenient for using. The ruler has a width of 1 inches and a thickness of about 4mm. DURABLE MATERIAL: Made of hard wood, smooth surface, no glitches, ensure a good using experience, wood material won't split, quite durable rulers. Wont be broken easily. WIDE APPLICATIONS: Suitable for home, office using, especially for school students and teachers, also can be applied for experiments and crafts. DOUBLE-BEVEL DESIGN: The scale of the ruler is very clear and accurate. Straightedge with double bevel design makes it more convenient to read the scale. WHAT YOU GET: 24 Packs Wood RulerS with 2 Scale (30 cm and 12 Inch). If you dont completely satisfy with this item, pls feel free to contact us. NOTE:Please keep the wood rulers away from water and fire.