1.This bobbin case and sewing machine part's item number is BC-HR221;

2.It is used for SINGER 221,301;

3.This kind of Bobbin case is use for whole machine;

4.This kind of hook is very difficult for Chinese factory, but our factory can do it with better quality and low price to our customer;

5.Style: All kinds of high quality Bobbin case;

6.Good quality and resonable price.