Guaranteed to fit Consew Sewing Machine Models:
224, 224R-1, 225, 226R-1, 255RB-3, 226R-2, 228R-11, 254B-3, 254RB-3, 255B-3, 255BK, 255RB-3, 289RB-2, 301, 302, 303, 304, 321, 322, 323, 324, 327RB, 328RB, 329RB-1, 332R, 333, 333B, 333BL, 333R, 333RB-1, 333RBL-1, 339, 339B, 339BL, 339R, 339RB-1, 339RBL-1, 369RB-2, 389RB-3

Guaranteed to fit Seiko Sewing Machine Models:
CW-1, CW-7, CW-7B, CW-8, CW-8B, CW-8BV, LCW-6F, LCW-7, LCW-7B, LCW-8, LCW-8B, LCW-8BV, LCW-8V, LPW-26BL, LPW-26L, LPW-278BLK, LPW-27BK, LPW-27BL, LPW-27BLK, LPW-27L, LPW-28BK, LPW-28BL, LPW-28L, LPW-6BL, LPW-6L, LPW-7BL, LPW-7L, LPW-8BL, LPW-8L, LSW-27BLK, LSW-28BLK, LSW-8BLM, LSW-8BLV-P, LSW-8BLVMF, LSW-8BLVPM, LSW-8BVL, LSW-8LM, LSW-8LV-P, LSW-8VMF, LSW-8LVPM, LSW-8LV, LTW-27BK, PW-26, PS-26B, PC-27, PW-27B, PW-28, PW-28B, PW-6, PW-6B, PW-7, PW-7B, PW-8, PW-8B, STW-8B