Bobbin Case, Singer #68009436 bfcm-discounted The 45-degree guideline also helps

The 45-degree guideline also helps you quickly and accurately trim half-square triangle blocks

then holds firmly under light pressure to help prevent slipping and miscuts

create a colorful image that is ideal for quilts and wallhangings

White 1521 Instruction Manual (Model 1521) - 39 Pages

Bobbin Case, Singer #68009436 bfcm-discounted The 45-degree guideline also helpsGuaranteed to fit Singer sewing machine models: 7285Q Patchwork*, 7363, 8768 Heritage, 90S Special Edition, One, One Plus, 160th Anniversary, Seventy *Depending on when your 7285Q was manufactured, there are two bobbin cases that fit this model. They are NOT interchangeable, so please ensure that your bobbin case matches the picture above. If your bobbin case has a bump in the middle, you will need #086132.