The ruler is made of high quality bakelite, which not rust or deform. High-precision manufacturing technology is adopted, and the ruler body has a precise scale, which is convenient for reading. The combined angle ruler can handle multiple processes, making your workbench clean and space-saving. Suitable for measurement, marking, layout, etc. You receive a multifunctional combination angle ruler, which can meet your daily application needs. describe: Name: multifunctional combined angle ruler Specification: length 150mm Material: bakelite colour: Black Package Contents: 1 x Multifunctional combined angle ruler Only the above package content, other products are not included. Note: Light reflection 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.