Aluminum Curve Ruler (Metric)

Aviation quality aluminum material similar to aircraft wings. Flexible, durable and not warping. 1.5mm thickness and 61 cm in length. Ideal for professional pattern making, at home or at school. Used for lapel, sleeves, armholes, or anywhere a special contour is needed. 0.5cm calibrations on one edge. Another essential tool with grading rule for pattern making.