(10 Pack) BOBBINS Plastic Pfaff Quilt Expression 4.0 4.2 Performance 5.0 Approximate Measurements Are: Height  3/8" Diameter - 27/32" Very Slight Curved Top & Bottom. Plastic Bobbins #820921096 fits: Creative Sensation, Creative Sensation Pro, Creative Performance, Creative Vision, Creative 2.0, Creative 3.0, Creative 4.0, Creative 4.5, Creative 5.0, Expression 150, Expression 2.0, Expression 3.0, Expression 3.2, Expression 3.5, Performance 5.0, Quilt Expression 4.0, Quilt Expression 4.2. Alternative Part Numbers Include - 820793096. You will receive 10 Bobbins in one box.