5 Assorted Serger Needles (2 X Size 11, 3 X Size 14), 

Needle System : HAX1SP also sold under HA-1SP, 15X1SP

Part #784860100,

Flat needle shank

Fits Elna Sewing Machine Models:

664 Pro

Fits Janome Sewing Machine Models:

1110DX, 134D, 204D MyLock, 434DR, 634D, 644D, 7034D Magnolia, 734D, 744D, 8002D, 9002D, Four-DLB, HF3434D, HF504D, HF7933, HF9102D

Fits Necchi Sewing Machine Models:

S34