Pfaff Category J bobbins. 20 bobbins in a pack.

Category J - Machines with 9 mm stitch width, and IDT™ system creative sensation™ pro II creative sensation™ pro creative sensation™ creative vision™ creative performance™ creative™ 4.5, 4.0, 3.0, 2.0 performance™ 5.0, 5.2 quilt expression™ 4.2, 4.0, 720 expression™ 3.5, 3.2, 3.0, 2.0 expression™ 150, 710