Item Type: Triangular Ruler_x000D_ Material: Aluminum Alloy_x000D_ Thickness: Approx. 4mm / 0.2in_x000D_ Exterior Treatment: Oxidation_x000D_ 3-Side Size: Approx. 180 x 180 x 260mm / 7.1 x 7.1 x 10.2in 1This triangular ruler is constructed of aluminum alloy as a whole, which is light and convenient. 2The aluminum alloy triangular ruler has clear graduations, good oxidation resistance, strong and durable. 3The overall ruler body is thickened, the thickness can attain 4mm, and it is practical. 4Adopts a horizontal base design, which is convenient to draw a line by the side and try smoothly. 5With a conversion table on the back, measurement and reading are convenient and quick.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.1 xTriangular Ruler