Rollerball Pen Refill — Black Ink 0.5mm

A great-value economy rollerball refill, ideal for pen makers who want a replacement cartridge at a budget-friendly price.

This unbranded refill matches the dimensions of standard rollerball cartridges and is compatible with most rollerball pen kits, including the JW1 & JW2 pen kits — making it a practical choice for hobbyists and those looking to stock up without breaking the bank.

• Ink colour: Black
• Nib size: 0.5mm
• Dimensions: 119mm long × 6mm wide
• Compatible with most rollerball pen kits, including the JW1 & JW2 pen kits
• Economy unbranded option — great value for money

Perfect as a spare or everyday refill for your handcrafted rollerball pens.