✅【Premium Material】Metal ruler made of 100% premium quality aluminum alloy,sturdy and durable.for your long lasting use. ✅【Double Scale】Each metal rulers has inch scale and metric scale. it is convenient to transform between cm and inch when using. ✅【Unique Design】The stainless steel ruler is laser etched for accuracy.The conversion table is designed so that you do not need to convert again, Improve your work efficiency ✅【Easy to carry】he surface of the rulers are smooth with no burr; will not hurt your hands because of the sharp angle.One end is square, the other is rounded with a hole to make it easy for hanging. ✅【Widely Application】his steel ruler set is a useful measuring tool , great for measurement, painting,Especially ideal for students, engineer, architect, teachers, designers and other professionals., Manufacturer: Eruinfang