Used to pull set / hardened caulk from a used nozzle. Simply remove the nozzle from the tube, wind the unblocker tool in and pull out the old caulk. Used to restart a tube with nozzle that hasn't been used in some time.
Printed with 0.2mm layer height in PETG, 25% infill, 3 perimeters, supports ON with brim.
UPDATE: Added Version 2:
The author marked this model as their own original creation.