Colour-code your notes and highlights with this double-sided highlighter marker set. Each pen features a 4-mm chisel tip on one end and a 0.3-mm fineliner tip on the other in the same colour. The chisel tip features softly colored ink that is perfect for highlighting important lines without overpowering the text. The fineliner tip features a brighter version of the same color, ensuring that your written notes are easy to read. The extra-fine fineliner tip is especially useful for writing in compact planners or in the thin margins of a textbook.