Ok I got this one! LAMY Safari Rollerball - have been using them for years :)

Hyperpunk & techni-optimist. Co-founder, Scout Game.
https://scoutgame.xyz

Ok I got this one! LAMY Safari Rollerball - have been using them for years :) 
https://www.lamy.com/en-us/p/lamy-safari-rollerball-pen/50723080601934

Working on @moxie.eth. 
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I like their special editions like this. Also, they are very durable (just not against dogs 😢 ) and simply buy a bunch of refills and use it for years :)

am interested in something with a nice clip like that for sure