Item Type:Triangular Ruler_x000D_ Material:Aluminum_x000D_ Color:Black_x000D_ Measuring Range:0~7in_x000D_ Angle:0~90 Degrees 1Each ruler were thickened, corrosion-resistant, high hardness, durable. 2The surface scale of the ruler body is clear, wear-resistant, does not fade, and has a long service life. 3Each ruler of the triangular ruler and each edge of the ruler are polished by a special process, which is smooth and does not hurt your hands, and is beautiful and generous. 4Made of fine aluminum material,lightweight and strong. 5There is a common rafter conversion table on the ruler for clear conversion.1 x Triangular Ruler 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.