This straight ruler is made of wood material, practical and to use, which is suitable for measurement use. The straight ruler can be applied for home and office using, teens and teachers using. It is very convenient to use and accurate measurement. Features -Color:Khaki -Material:Wood - Size: 30.00X3.00X0.20cm/11.79X1.18X0.08in - Size: 15.00X3.00X0.20cm/5.89X1.18X0.08in - Size: 20.00X3.00X0.20cm/7.86X1.18X0.08in -It is manufactured with professional technology to ensure the of the product and can work for a long time. -The wooden ruler can be used in drawing, straight cutting, teaching, engineering and other fields. -Strong, sturdy and wear-resistant, and this practical wooden ruler is not easy to deform and break. -The portable design makes it easy to use and store and make your tools look neatly and organized. -Compact size, easy to carry and use, markings for easy and precise measurements, can bring you a good experience. Package list: 9 x rulers