AMACO® PolyBlade™ Clay Cutter is a blade designed specifically for use with polymer clay. They are made of stainless steel and lasts 2 to 3 times longer than other blades. Use with extreme care. Flexible- super flexible blade makes curved cuts and arcs in polymer clay or canes. It is a full 20cm (6") long and makes micro thin cuts. This blade allows the user to create a wide variety of shapes that cannot be made with other blades. Very sharp , Not for use by children.