Printed with PLA
0.3 draft
Added .3mf to see the best way to slice and print it. (glue needed)
Dont forget to add support blocker for the insert hole
Ment to be used with 3mm ballpen refill (https://www.cultpens.com/i/q/ZB01893/zebra-k-ballpoint-pen-refill)
The author hasn't provided the model origin yet.