This bobbin is designed with a slot that allows for easy spindle engagement when winding. Part # 239729S is sold separately as a single item.
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