The Sharpie Blade highlighter features an innovative tip that delivers precise highlighting with the ability to select 3 different line widths and thanks to its large ink supply, it’s the longest lasting Sharpie Highlighter! Like many of our highlighters, the Sharpie Tank Highlighter features our exclusive Smear Guard Technology. This special ink formulation allows the highlighter to resist smearing over many pen and marker inks including written notes, faxes, copies, newspapers and more. Always make sure to let the ink sufficiently dry for best results.