Fits : Brother : PR600II , PR620 , PR650 , PQ1300 , PQ1500 , PQ1500SL , PQ1500SLPRW , PQ1500S Nouvelle , PR1000 , PR1050X Entrepreneur , XL700 , XL703 ELNA - 100, 1000, 101, 102, 103, 104, 7100 , 940 PFAFF - 1200 RICCAR - 2600, 2800, 2900, 2950, 3300, 3400, 3500, 3600, 4001, 4003, 414, 420, 500, 515, 525, 550, R551, R552, 555FA, 570, 572, 606, 651, 666FA, 777, 800R, 805, 806, 807, 808E, 8400, 8500, 888, 906E, 9150, 9160, 9600, 9700, 9800, 9900, R650, R751, RE570, RE571, RE580, RE591, RE640, RM540, RM570 [SINGER] - 206, 206K, 20U, 20U33, 251, 281, 306K, 306W, 319,  [VIKING] - Mega Quilter & 2840  [JUKI] - DDL-227, DDL-5530, DDL-555, DDL-5550, TL-98E, TL-98Q, TL-98QE . [JANOM (New Home ) ] - 1600P , 1600P-DB , 1600P-DBX , 1600P-QC , 1600 SERIES , MB4 . [NECCHI] - 543 & Mirella [CONSEW] - 210, 220, 230, 2230, 231, 99, 103, 105, 292, 199R.      And Many Industrial use size L bobbin Sewing machines .