• A 2-in-1 marker that can help with memorising and studying.
• You can use the bold green pen to paint the keywords in the textbooks. The keywords will be hidden under a transparent red sheet (not included). This can help you to memorising the keywords. After you memorised the keywords, you can erase them with the Kokuyo Checkle Memorisation Eraser (sold separately).
• Alternatively, you can write notes with the extra-fine orange pen. The notes you wrote will also be hidden under a transparent red sheet (not included).
• The bright blue ink is easy to read and does not bleed through easily, so you can also use it as a highlighter.
• Water-based dye ink.
• Pen size: D13× L142mm.
• Core diameter:
• Bold square core (Green): 3.5mm
• Extra-fine core (Orange): 0.3mm
• Made in Japan. 

Notes:

• The orange colour of the memorisation pen CANNOT be erased with the Kokuyo Checkle Memorisation Eraser.
• Once you have erased the colour, you cannot colour the same place again.
• Depending on the types of stationery, printing or paper, the marked places may not disappear completely.