Every garment maker knows that garment alterations are a normal part of the sewing process. As such, curve rulers are used to make adjustments. The Vary Form Curve draws a wide range of curves by simply turning. It is especially useful to the patternmaker in drawing arm holes, sleeve caps, necklines, collars and in adjusting waist and crotch fit of garments. Vary curve ruler are also excellent for graphic artists, illustrators or others who need to draw or cut smooth, curved lines. The Vary Form Curve alone nearly replaces a full set of French curves.