Set of 16 Markers S Note Duo Assorted Colors Sharpie A dual-ended highlighter for thin and thick lines, S-Note Duo encourages both creativity and precision. Perfect for highlighting, annotating, underlining, drawing and more. It's more than just a highlighter, it gives you more flexibility in using a highlighter as a highlighter, bullet journaling, note taking, and much more. The S-Note Duo is simply an extension of the existing S-Note with the added benefit of the bullet tip. The ink is water-based and the packaging is made of cardboard. Contains 2 tips, one beveled and one bullet type. Brand: Sharpie.