Check the listing for details. 100 Singer Plastic Sewing drop-in Bobbins (66 Class). Condition: New. Listed at 15.95 USD. Brand New 100 Pieces of Plastic Drop-In Bobbins for Singer 66 Class, 99 Class, 200, 300, 400, 500, 700, 800 series and many more. Part Number 172336 or 172222P. The bobbin is curved (not flat), diameter 20.5mm, center height 10.8mm.Singer models: 66, 99, 200, 300, 400, 500 series, 714, 717, 719,734, 774, 776, 802, 807, 809, 813, 814, 818, 822, 824, 827, 833, 834, 838, 844, 935U, 1022, 1247, 1263, 1280, 1288, 1802, 1803, 1812, 1852, 1853, 1862, 1872, 1873, 2210, 2302, 2303, 2304, 2315, 2330, 2404, 2430, 2440, 2502, 2503, 2504, 2515, 2530, 2732, 2950, 3101, 3102, 3103, 3105, 3314, 3317, 3343, 4325, 4522, 4525, 4526, 4528, 4530, 4538, 4552, 4562, 4572, 4610, 4620, 4622, 4825, 4828, 4830, 5017, 5028, 5040, 5050, 5417, 5430, 5605, 5610, 5705, 5710, 5802, 5805, 5806, 5808, 5810, 5812, 5814, 5816, 5817, 5818, 5820, 5825, 5830, 5838, 5910, 5932, 6010, 6011, 6012, 6021, 6038, 6100, 6101, 6102, 6103, 6104, 6105, 6106, 6110, 6201, 6202, 6211, 6212, 6214, 6215, 6217, 6233, 6513, 6522, 6528, 6533, 6543, 6544, 6548, 6700, 7004, 7015, 7021, 7025, 7028, 7033, 7101, 7102, 7104, 7105, 7106, 7108, 7110, 7136, 7174, 7211, 7212, 8002, 8007, 8019, 8100, 8200, 8220, 8500, 8600, 8774, 9005, 9008, 9010, 9015, 9018, 9020, 9022, 9027, 9030, 9032, 9034, 9044, 9110, 9130, 9210, 9323, 9334, 9408, 9410, 9416, 9420, 9423, 9430, 9432, 9444, 9500, 9502, 9505, 9518, 9600, 9602, 9605, 9606, 9608, 9610, 9612, 9614, 9618, 9802-9836, 9936, 57817, 57820, 57825, CG500, CG550, CG590, DL17, DX-14C, FM17, FM22, and more. Bernina : 719 Brother : VX1005 Dressmaker : 300Z Necchi : 538 White : 8600, 8800 Payment: Paypal accepted. Shipping: Buyer pays shipping. I ship USPS First-class. We offer combined shipping. Contact Us: Feel free to contact me anytime. Please email me if you have any questions. You can typically expect a response within 1 business day. Thank you.