Singer : 206, 206K, 251, 281, 306, 306K, 306W, 319, 391
Please e-mail us with make/model of your sewing machine if in doubt. We
stock many type of bobbins & bobbin cases for sewing machines. Even
if you don't find the one you looking for, it does not mean we don't
have it in stock. Please let us know machine builders' reference numbers
and/or machine make & model and we will find one for you.