80's "Adjustable Zipper Foot Attachment - Sewing Tool - Seamstress

This is a new, in package, "Adjustable Zipper Foot Attachment" for applying lightning invisible zippers. Distributed by "Lightning Fastener" in Ontario and QB, this attachment includes 4 plastic pieces with instructions and hints. his In excellent vintage shape, there are no flaws. A functional piece for a seamstress. NOTE: Please read the packaging to ensure your sewing machine is applicable.