Made this for someone to have better access to the sewing threads as well as the bobbins. Don't have to reach for a container and rummage through them anymore.
It is stackable as much as you want it to be.
NOTE
The base in the picture is an old design that requires more plastics and takes longer to print. Do let me know if you need a design that doesn't have the bobbin tray.
The author hasn't provided the model origin yet.