Helix Irregular Curves come as a set of three irregular curves. They are molded of transparent plastic, and are .095" thick. The curves are tinted blue, with double inking edge. The set of curves includes one of each of the following sizes:
5-1/4" (13 cm)
6-3/8" (16 cm)
12" (30 cm)
® Helix is a registered trademark.