This is a measuring ruler, made of high-grade stainless steel material, which is and can be used for a long time. Double-sided scale design, accurate measurement, can bring you a good experience. Suitable for drawing, carpentry, engineers, etc. Features -Color: Silver. -Material: Stainless steel. -Size 1: About 17.00X1.90X0.05cm/6.69X0.75X0.02inch. -Size 2: About 23.00X2.60X0.05cm/9.06X1.02X0.02inch. -Size 3: About 33.00X2.60X0.05cm/12.97X1.02X0.02inch. -Ruler specifications are: 15cm/20cm/30cm. -With this ruler, you can easily measure objects and bring convenience to your life. -A useful measurement tool for math classes, schools, classrooms, offices, and work spaces. -This ruler is perfect office and school supplies for students and adults. It is very useful. -Double sided measuring scale. This is also a good present for friends, they will love this creative ruler. -These numbers are clear and easy to identify, and then you can quickly measure. Package list: 3 x measuring rulers