Compact & easy to use - Operates on batteries so take it anywhere.  Special industrial grade shrink tube material is flame, temperature, chemical, water and abrasion-resistant.  Printer works by printing words, numbers, barcodes or symbols on shrink tube material.  Standard typewriter keyboard for fast and easy text entry, up to 4 lines.  Printer also prints on label material.  Print your numbers, words, barcodes, or symbols onto material, place sleeve over wire or cable, heat shrinking sleeve to fit tightly around item.  The result is a durable, flexible marker that keeps its professional look for years.  Each kit comes with machine, 2 shrink tube cartridges (black on red and black on yellow), 6 batteries, owner's manual, adapter and heavy duty industrial yellow case.  Additional supply cartridges available in red, yellow, and white in 2 widths.