This clear "demonstrator" is the newest color in the Kakuno pen line-up from Pilot. Although it is meant as a beginner's pen for kids (note the smiley face on the nib), make no mistake - it is great as a daily workhorse pen, and has a real Pilot nib that writes smoothly. It is cheap enough to let someone borrow (under close supervision of course) and unpretentious enough to use without attracting attention.
Comes with one black ink cartridge, and works with the Pilot CON-20 and CON-50 converters.