Uxcell Scale Ruler, Metric Rulers Triangular Scale (a13092400ux1156) Product Name: Scale Ruler; Material: Plastic Total Size (Approx. ): 320 x 25 x 25mm / 12. 6" x 1" x 1" (L*W*T) Color: White, Yellow, Green, Blue Net Weight: 50g; Package Content: 1 x Scale Ruler Architect, engineer, and mechanical draftsmen graduations.