Flexible Curve bends to any shape. Plot lab results, draw graphs, copy chart recordings, and produce error-free diagrams. Draw perfect curvesÑplot curves and fit points precisely on any graph with ease, using the flexible curve. Bend into any desired shape. Fastest way to draw spectrophotometer, quality control, and standards curves. Adjusts to any shape. A unique raised ledge on one side prevents ink from running underneath the curve, thus eliminating smudges. The other side is flat for pencil drawings.