• Standard refill for any refillable EnerGel pen, including models: BL407; BL77; BL107; BL117; BL57; and BL37
• High performance ink technology combines the best qualities of liquid and gel ink for a super-smooth writing experience
• Liquid gel ink dries so fast even left handed writers love it - no smears, no smudges, no globs
• Box contains 12 ink refills
• Blue Ink