Baby Lock Upper Looper - 407-6101-01A

Fits Babylock Serger Models:
BL3200, BL3-318, BL3-402, BL3-406, BL3-407, BL3-408, BL3-416, BL3-417, BL3-418, BL3-426, BL3-437, BL4-437D, BL5180, BL5180NS, BL5260, BL5260D, BL5260ED, BL5280, BL5280E, BL5280ED, BL5280ENS, BL5380ED, BL80, BL90, DBL34-60, BLSE200, BLSE300

Fits Simplicity Serger Models:
SL600, SL660, SL700, SL800, SL850