A DOUBLE-SIDED MARKER USING 2 SHADES OF THE SAME COLOR. WIDE TIP USES COLOR THAT MAKES HIGHLIGHTED WORDS EASY TO READ. EXTRA FINE TIP IS HANDY FOR ADDING NOTES OR WRITING INSIDE PLANNERS WHERE SMALLER HANDWRITING IS REQUIRED, AND USES SLIGHTLY DARKER COLOR THAN WIDE TIP. THE INK AND COLORS FOR WIDE AND EXTRA FINE TIP ARE SELECTED SO THAT THEY ALSO LOOK BEAUTIFUL WHEN USED TOGETHER.