This is a bronze M-sized bobbin for your longarm quilting machine. The bobbin thread tension is much smoother than imitation bobbins.
This is an M Size bobbin that will fit all Gammill longarm quilting machines and many other longarm quilting machines. Please view our bobbin compatibility chart for more detail on whether your make and model uses an M-sized bobbin.
Please visit our Shipping & Returns page for more information about product warranties. Be sure to hang on to the original product packaging.