This cartridge-type roller ball liquid ink pen refills with international short Kaweco ink cartridges, just like a fountain pen! It's a convenient ink system that gives you the smooth flow and color range of fountain pens in a roller ball pen form. The Kaweco Sport Ice Roller ball pen is available in four translucent colors and is made from strong yet lightweight ABS/Terlux plastic.
Pen dimensions: Approximately 4.1 inches (10.5 cm) long closed, 5.1 inches (13 cm) with cap posted x 0.4 inches (10.8 mm) body diameter. Cap diameter: Approximately 0.5 inches (14.2 mm).
The video below shows how to install an ink cartridge in your Kaweco pen:
the idea behind this rollerball is awesome- a "regular" rollerball pen that can
use fountain pen ink! However, the pen has a terrible tendency to skip on finer
paper such as rhodia and clairefontaine. That said, it preforms admirably on
cheap paper, laying down a thick wet line. Overall, a decent little pen that
unfortunately does not play well with nicer paper. oh well, I guess I'll just
use my Kaweco Al-sport (F) for that... ;)