A bobbin case, also known as a bobbin holder or bobbin shuttle, holds the bobbin that is filled with thread. Each machine has a specific bobbin case. For the model of your search. (Singer Bobbin Case # 52237) Brother 714, Brother 735, Brother 755, Consew 230, Consew 231, Consew 7360R, Juki DDL-227-L, Juki DDL-5530, Singer 188K, Singer 591D, and more.
