Tension Unit, Singer (Vintage Original) - NUMBERED fwtheme This case style is more

This case style is more often found in the United Kingdom than the USA

depending on personal taste and the nature of the article being made

If your machine's belt slips or squeaks—or looks shiny and glazed—it's likely time for a refresh

Stay stitching of bias edges

Pull the cloth taut across the flat part of the darner

Tension Unit, Singer (Vintage Original) - NUMBERED fwtheme This case style is moreOriginal Singer Tension Unit for the Singer 221 and 222 Sewing Machines. Slack Regulator sold separately. It really is a matter of ease and preference, but if your old Singer Sewing Machine, including but not limited to the Featherweight 221, has one of the old style Tension Units then you might consider the option of switching it to a numbered tension unit. You can replace them with an original from another old Singer Featherweight machine, which is