ZEBRA Ballpoint Pen Slurry Black 5 x 10 Oil-Based 0.7 B-P-BN11-BK5

[Ink] Emulsion dye + pigment [Emulsion ink] Oil-based (writes firmly) + Gel-based (writes smoothly) = Emulsion (writes smoothly and smoothly) [Shaft] Inner 6-sided cut [Compatible refill] EQ-0.7 core [Quantity] 5 pieces x 10 pieces