Cutting Styrofoam made easy! With the Styrofoam cutter, you can easily and cleanly cut Styrofoam into the desired shape or size. The cutting wire of the hot wire cutter is heated by batteries. By pulling apart or pressing together the ends of the bow before tightening the wire, you can vary the temperature of the wire and adjust it for working with different materials. This means that with the Styrofoam cutter, you can not only cut Styrofoam or Styrodur but also materials like foam and sponge rubber. For clean cuts with the handheld device, always ensure a tight tension of the cutting wire. Additional product details: hot wire cutter, battery-operated, 1 roll of cutting wire, instructions. You will need 2 AA 1.5V batteries for operation, which are not included in the package.