The Pentel ink refill is compatible with Pentel Superb, BK77, and BK127 pens. It uses oil-based ink and features a nickel-plated silver tip with a hard-metal ball.

• Compatibility: Pentel Superb, BK77, BK127
• Ink color: Pink
• Ink type: Oil-based
• Tip size: 0.7 mm
• Line width: 0.27 mm
• Writing length: 1700 m
• Ink capacity: 0.3 g
• Tip material: Chrome-plated silver
• Ball material: Hard metal
• Barrel material: Polypropylene (PP)
• Length: 14.3 cm
• Diameter at widest point: 3.1 mm
• Weight: 1.1 g
• Quantity: 1