Guaranteed to fit Consew sewing machine models:
226R-2, 254B-3, 254RB-3, 255B-3, 255BK, 255RB-3, 255RB-3, 255RBL-25, 329RB-1, 333B-2, 333RB-2, 339B-2, 339RB-2, 339RB-3, 339RBL-25

Guaranteed to fit Seiko sewing machine models:
BBWP-8BL, BBWP-8BL-BTFL, BBWP-IBLC-BTFL-CD-DS, BEW, 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, LPWN-28BL-2, LPWN-8BL-, LPWN-8BLC-2, LSW-27BLK, LSW-28BLK, LSW-8BLM, LSW-8BLVMR, LSW-8BLV-P, LSW-8BLVPM, LSW-8BVL, LSW-8LV, LSW-8VMF, LSW-8LV-P, LSW-8LVPM, LTW-27BK, STW-8B

Guaranteed to fit Singer sewing machine models:
210B6LG, 210B7LG, 238B27BLK, 238B28BK, 238B28BLK