기능

• Compared to a 0.5 mm core, a 0.7 mm core has about twice the cross-sectional area, so the core is hard to break. Also, you can write smoothly, so your hands won't get tired easily.
• It is not too thick like a 0.9 mm or 1.3 mm core and can be written properly in a notebook. Also, it is not too thin like a 0.5 mm core, so the text is appropriately thick and the notes are easy to see.
• The body is a triangular shaft that can be grasped stably. Coated with soft elastomer resin, it fits your fingers.
• You don't have to remove the cap, just insert the core from the top. There is no need to worry about losing the cap. In addition, it has a safe design to store the nib when not in use.