Makeup Correction Pen. Easily correct makeup mistakes. Perfect for eyes, brows, lips. Slipped up while doing your eyes, lipliner or brows? Simply whip out your Slip Up Pen and swipe the fine tip over the area to cleanly and accurately erase any mistakes. Once a tip has become dirty after a number of uses, simply pull out and replace with a new one. Contains: 1 Correction Pen & 3 Replacements Tips.