Looper Threading Wire 480mm long for Bernina air threading overlocker L850, L860  #104067.70.00  

and also for all Babylock air threading overlockers/sergers BLE8, BLE3ATW, etc. etc. 

#B8200-4B (#B8200-2B) (B8203S07A)  

This wire can be used to thread heavier yarns and also serves as a cleaning aid.