This pen holde ris designed to hold [Platinum Preppy Fountain Pens](https://www.amazon.com/gp/product/B00IU3US7O/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B00IU3US7O&linkCode=as2&tag=saltfab-20&linkId=3b0f5015a84f700143080ffddd72a5c9) onto the cover of a Moleskine notebook ([this one is my favorite](https://www.amazon.com/gp/product/8883701135/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=8883701135&linkCode=as2&tag=saltfab-20&linkId=c850f2871b828758d2f89b22dd1dbaa3)).
Full overview is on www.SaltFabs.com