Simple lids for closing cardboard transport tubes.
The lids are available in two sizes, for rolls with an inner diameter of 40mm and 99mm.
The size can be adjusted with scaling in the slicer.
For example see: Measurement tool in PrusaSlicer
https://help.prusa3d.com/article/measurement-tool_399451
Designed with the help of FreeCAD, made possible by the dedicated efforts of its community.
The author marked this model as their own original creation.