Zebra Sharbo X (Score 1)

I wanted a gel multipen, since all the multipens I've found are ballpoint and I find ballpoint ink annoying. I'm currently using a Zebra Sharbo X from jetpens, which is basically a build-your-own-pen kit. You can get ink refills which use either ballpoint or gel ink, with a size from 0.4 mm up. The form factor is also the same as a standard pen. The basic set can be a bit pricey, but I've found it very good.