A replacement gel ink refill for the ystudio Brassing Portable Ballpoint Pen custom-made by OHTO, one of Japan’s most respected ink manufacturers. The 0.7mm medium tip writes smoothly and consistently, laying down clean, dark lines without skipping or bleeding.

This is a Parker-type refill, which means it also fits most other pens that accept the same standard. At approximately 98mm long with a 5.8mm diameter, it’s a straightforward swap when your current refill runs dry.

Details

Tip Size: 0.7mm (Medium)
Ink: Black gel
Type: Parker-type refill
Length: ~98mm
Diameter: 5.8mm
Compatible with: ystudio Brassing Portable Ballpoint Pen (and most Parker-type pens)
Made in Japan