I've been making pens for friends and have run across folks who really like the popular throwaway gel and fine tip rollerball pens like the ones Uniball makes. All the rollerball kits I run across are hefty. People like the size of the Slimline kits but want rollerball/gel refills. I've not run across a gel/rollerball refill that fits the Cross specs of a Slimline.
Is there a rollerball kit out there on the slimmer side (<10mm)?
Thanks!
Is there a rollerball kit out there on the slimmer side (<10mm)?
Thanks!