4240-1 Size: 12" Features: -Extremely durable and impervious to most solvents.-Calibrated in inches centimeters pica and points.-Dimension: 0.12" H x 2.25" W x 12" D.-Dimension: 0.12" H x 1" W x 18" D.-Dimension: 0.12" H x 1.25" W x 24" D. Color/Finish: -Precision-made of anodized silver-colored aluminum with a hard tempered blade and an ultra smooth surface.