Bobbin cases houses the threaded bobbins under the sewing machine.
The bobbin case for industrial sewing machine is made of stainless steel, and can be used for a long time.
It is designed such that the bobbins can stop spinning more quickly, effectively preventing unraveling or tangling of bobbin thread when sewing operations stop and start.
There are 4 pieces of industrial sewing machine bobbin cases in the package.
It is compatible with most industrial sewing machines.