Individual Bernina 8 Series Jumbo Bobbin 032295.54.00 is designed for to specific specifications to help the Bernina 8 series machine maintain consistent thread delivery which make for better tension. It holds 80% more thread than the average bobbin and helps to produce accurate stitching. This bobbin is compatible with the Bernina B820, B830, B830 Limited Edition, B880, B880 Plus