The selling price is set low. We do not negotiate discounts. [Artline Runshin 150 yen] 　Product number: K-177 　Medium point, round tip, blue Successor product [Kaki-ma Pen Oil-based Marker 120 yen] 　Product number: K-177N Even if you forget to close the cap, the pen tip won't dry out. (Kaki-ma Pen Oil-based Marker: about 2 weeks) By using special ink, a thin film is formed on the surface of the pen tip to prevent ink evaporation, so you don't have the hassle of opening and closing the cap even when writing for long periods. A great product that can be used repeatedly by refilling ink and replacing the pen tip. By refilling the ink or replacing the pen tip, you can use it for a longer time, which also helps conserve resources.