<p><strong>Dritz Metal Bobbins, Class 15:</strong></p> <ul> <li>These bobbins will fit all Singer Class 15 models</li> <li>Some of the following machines: Baby Lock, Riccar, Simplicity and White</li> <li>This package contains 12 class 15 Dritz bobbins in a plastic case</li> <li>Box of Bobbins is a handy reusable plastic box that includes twelve empty metal bobbins</li> <li>Thread colors visible through box; Includes foam insert to hold bobbins</li> </ul>