These are sold individually Superior Threads
Aluminum M style bobbin with slot for spindle engagement when winding.
Fits most long arm quilting machines using M style bobbins.
Handi Quilter, Babylock Jewel and Crown Jewel, Tin Lizzie 18, Husqvarna Viking Mega Quilter 18x8, Pfaff Grand Quilter 18x8, Janome Artistic Quilter, Queen Quilter 18
These large M-Class bobbins are designed to hold more thread than a regular bobbin, letting you quilt longer without needing to change it.