Proxxon 27082 Thermocut 12/E Hot Wire Cutter for Free Modelling in Styrofoam Free hand cutting in thick Styrofoam for diorama model railroad construction of any shape or classical model building Variable cutting temperature control Extendable wire fixture with maximum extension of 7.9 inches Requires Proxxon 38706 NG 2/S Micromot 12V transformer for operation sold separately.