Tension Unit, Singer (Vintage Original) - NUMBERED color-multi Stitching curved and bias seams

Stitching curved and bias seams

but it is missing the small brass cap on the other end

and as wide as 15/16 inch

NOTE:  Thumb nut is not included

Tension Unit, Singer (Vintage Original) - NUMBERED color-multi Stitching curved and bias seamsOriginal 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