1PCS Bobbin Case. Compatible with /Replacement for Bernina brand Sewing Machines, including: 117, 121, 217, 217N, 217N-C, 317, 517, 540, 542, 544, 640(Not Artista), 640-2, 740(NOT 740E), 741, 742, 744, 750(Old Model), 840, 841, 842, 850, 851, 852, 940, 950 1. Part number: 0040777000 2. Part name: Bobbin Case 3. Quantity: 1PCS 4. Compatibility This high quality Bobbin Case replacement is exactly compatible with /Replacement for Bernina brand Sewing Machines, including: 117, 121, 217, 217N, 217N-C, 317, 517, 540, 542, 544, 640(Not Artista), 640-2, 740(NOT 740E), 741, 742, 744, 750(Old Model), 840, 841, 842, 850, 851, 852, 940, 950 5. Technical supports 1) In case you are not sure if these parts are compatible with your machine, please feel free to send us a message via Amazon, our technicians will provide you with professional and accurate advice in 24/7. 2) Do not hesitate to contact us if you run into any issue using the received parts. 3) Please provide us with your machine brand and complete model for technical supports.