Mitsubishi UL-S-0.7-40B ULS0740B 4902778274248 (10 sets)

Core diameter: 0.7mm Although it is clear and dark, it does not get smeared even when rubbed, and the letters do not bleed even when drawn with a marker. A sharp refill that is hard to break, dark, smooth, and stain-resistant. ◆Hardness: B ◆Quantity: 40 pieces