Electro-Chemical Etching Machine "The Personalizer" Add your custom logo to your knives, guns, tools, and jewelry by etching or oxidizing the metal! 12 volt transformer, Etch/Mark switches between 120V direct current and 60Hz alternating current. Safety fuse installed to prevent blowout from accidental circuit completion. Comes with power box, one cathode applicator, one pack of 15 applicator pads, one bottle of SCE-1 eletrolyte fluid, one bottle of SCE-10 electrolyte fluid, one bottle of AMCE cleaner, one roll of stencil paper, one practice stencil, and instructions. Each item (except box and applicator) also sold separately. Etches and/or marks just about any metal, in only a few seconds!