Covers even the toughest of mistakes, such as red ink and permanent marker in just a single stroke. Wite-Out? Brand foam applicator gives you quicker, neater and more precise corrections than just standard brush applicators. Advanced technology allows application of just the right amount of fluid?every time! For water-and solvent-based inks, permanent marker, ballpoint pen, roller pen, highlighter, pencil, photocopies, faxes, laser and inkjet.