Ruler with 2 scales: these wood rulers have 1/16 inch standard (12 inches totally) and 30 cm metric scales, it is handy for you to choose one of the scale for using Durable material: rulers are made of hard wood, smooth surface, no glitches, give you a good using experience, wood material won't split, allows a long serve life Double bevel design: straightedge with double bevel design makes it more convenient to read the scale, the scale of the ruler is very clear and accurate Wide applications: wooden rulers are suitable for home, office using, especially for school students and teachers, also can be applied for experiments and crafts Wood color Made of hard wood, durable and sturdy. Not easy to break and the scale would not fade, allows a long lifespan. Smooth surface without glitches would add the safety and not hurt your hand by the edge when you are using it. Accurately printed in both inches and centimeters. The wooden ruler range is 12 inches/30 cm, large and clear markings provides accurate measurements. Package Contents: 24x ruler Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.