Platinum's silky smooth gel ink rollerball refill cartridge fits Platinum rollerball pens and has the length to be used with other standard, international G2 style rollerball pens. Check the ink level with a transparent, plastic ink reservoir tube and a precise metal tip. This refill lays down a fluid, rich, fine line (0.5mm). Sold individually.
Platinum GSP-80N Rollerball Gel Ink Refill Specifications
Refill type: Gel ink rollerball
Compatibility: Platinum rollerballs and other international standard G2 style rollerball pens