Bogert Aviation's Wire Marking Tool takes the guess work out of wiring jobs. Add a colored stripe to insulated 24-8 gauge wire for quick identification using the non-conductive nylon tool and a permanent marker. Aircraft wire, Romex, Cat 5, coax and data transmission cable are cleanly and easily identified by using different colored standard Sharpie markers. No batteries or specialty supplies needed. 2 lbs (1Kg) shipping weight.