Multifunctional Ruler: Can, circles, rectangles, and triangles, also draw cylinders, cones, cubes, parabolas, golden sections, bisectors, vertical
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【Multifunctional Ruler】Multi-function measuring scale can draw the required graphics, Such: Protractor scale, Y spool, Function drawing slot, Circle
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Multifunctional Geometric Ruler, Mathematics Drawing Ruler
Multifunctional Geometric Ruler, Mathematics Drawing Ruler