R-BP1 Ballpoint Cartridge Refill

Anterique's Mach Ball refill in 0.5mm black — ultra-low-viscosity oil-based ink with a spring-loaded tip that controls flow precisely, keeping lines crisp and smudge-free.

• 0.5mm tip, black ink
• Ultra-low-viscosity Mach Ball oil-based ink
• Spring-loaded tip for precise ink flow control
• Compatible with Anterique Stationers ballpoint pens
• Made in Japan

Also compatible with:

• Anterique Matte Gel Pen Ballpoint Pen
• Mark's Days Mini Ballpoint Pen
  
• Mark's Days Mach Duo-Tone Ballpoint Pen 
• Penco Knock Ballpoint