Twin Needle Adjustable Central Guide Foot S570 1/4″ 6.4mm 

Part No S570X1/4C

Xref = 23069×1/4″

This is a high quality Twin Needle foot 

Trojan Sewing Machines Supply Equivalent Heavy Duty Twin Needle Lockstitch Machines.

Model Jack JK-58420C-005 Fixed needle bar

Model Jack JK-58750C-005 Knock-out needle bar

All with modern designs and the latest technology. All competitively priced.