Bobbin M Size
Premium Bobbin for Gammill and other Longarm Quilting Machines that use M Size (Big Bobbins)
This high quality bobbin will fit all M size bobbin cases. (The bobbin measures exactly 1 inch across) For use on Gammill Quilting Machines and many other longarm quilting machines. This heavy duty metal double capacity bobbin holds twice as much thread as standard sized bobbins.