Sewing spool clip

inspired from commercial product, I tuned it to suit gutterman bobines but can fit with a lot of brand.

to use in combination with a clip

https://www.printables.com/fr/model/249327-pfaff-sewing-machine-bobbin-cover/comments/1177551

https://www.printables.com/fr/model/108393-bobbin-clip/comments/1127544

I recommand to print it in PLA with 0.4mm diameter and layer of 0.2 or 0.3mm