LATERN 6 Pieces Triangle Architect Scale Set, 2 Pieces Triangle Architect Scale Set + 4 Pieces Triangle Scale Square Set

[6 Metric triangular ruler] Includes 2pcs triangular ruler, length is 30cm. Scale: 1:100, 1:200, 1:250, 1:300, 1:400, 1:500, with supreme precision [Laser etched] All the scales are etched on the ruler body by laser, prevent scale wear in use, will not fade or smear [High quality] Scale ruler set made of high-strength aluminum alloy, lightweight and reliable, durable, reducing bending and warping [Easy to read] All ruler's scale are designed in white on a black background, to make it easier to read every line and number to prevent eye strain [Applicable] This geometry ruler sets with reliable construction and accurate performance, is a useful tool for architects, engineers, artists, designers, students, teachers, etc