Janome Quilt Maker Pro Bobbin Case
Bobbin Case for Quilt Maker Pro 18 and AQSD-16
The bobbin tension for your Quilt Maker Pro 18 or AQSD-16 is set in the bobbin case. If you use a few standard varieties of bobbin threads, it could be useful to set the tension on each case to match that thread so that you have pre-set tensions for any bobbins you might need.