Staedtler - Textsurfer Gel Highlighter, Yellow, 10/Pk Conventional highlighters loosen pigments from the paper, causing them to smudge. Textsurfer gel was developed especially for use with pigmented inkjet inks, as are common in inkjet printers. This dry highlighter with translucent wax lead never needs sharpening, simply twist the barrel and continue highlighting. Works perfectly on photocopies, faxes, carbonless copy and computer print-outs. Can be left uncapped for days without drying up