Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! [Material]Made of stainless steel, it is sturdy, durable, thick, not easy to damag and bend, and has a long service time. [L Shape Design]90-Degree ruler can accurately measure the vertical deviation of internal and external angles. The front of the ruler is in centimeters, and the back is in inches. The wide base below it makes it easy for rulers to stand firmly and measure. And the number on the tuler is clear, accurate, and easy to read. [Application]It is suitable for engineers, carpenters, architects, designers, etc. to measure right angles Colour:Photo Color Material:Stainless steel Size:A:63 x 40mm /B:100 x 63mm Package Contents: 1x Square Tool 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.