Schneider Topball 850 Rollerball Refill
- Length: 76.2mm (3″)
- Manufacturer’s website: Schneider Pens
The Schneider Topball 850 is a rollerball that matches the standard ceramic rollerball (RB) size. This refill will fit most pens that take the standard rollerball. It is available in a fairly fine line width in black, blue, red, or green ink. Numerous pen and refill makers offer substitutes for this refill.