A highlighter is a writing device used to draw attention by marking portions of text with vivid, translucent colors.. curve highlighter pen Whether you are taking notes, storing school or office supplies, or writing a diary, this highlighter is perfect for you!. Chiseled to a tip & groomed to perfection with flexible line widths. Water based fluorescent quick drying ink for high visibility, non toxic ink. Enjoy a pack of 6 colourful highlighter pens in different designs and shades.