Aluminum M style bobbin with slot for spindle engagement when winding.
Specifications
Fits most long arm quilting machines using M style bobbins. Grace Qnique, Brother DQLT, Handi Quilter, Babylock Jewel and Crown Jewel, Tin Lizzie 18, Husqvarna Viking Mega Quilter, Pfaff Grand Quilter, Janome Artistic Quilter, etc,