기능

• A sharpie with the high performance of a drawing sharpie.
• Sturdy 4mm sleeves.
• Even if you put the tip of the pen on the ruler, you can pull it smoothly.
• The three-dimensional rubber grip improves the anti-slip effect and gives you a firm grip.
• Since the mouth cap and grip are integrated, the mouth cap does not loosen, and writing feels solid.
• Knock button with presence like a pump.
• With Eraser