Self-threading needles discolored
I treated myself to some self-threading needles for hand sewing. They are the kind where the thread slips in from the side, not the end. They are ridiculously expensive for a package of 8, 4 large and 4 smaller. When I took them out to use one last night I saw that the smaller ones had all oxidized and discolored. The larger ones are fine. I'm hoping they do not leave marks on the fabric (like rust would) or have a rough surface that could damage the fibers. Any one else come across this?