All Handi Quilter longarm machines were designed to use the M-Class Bobbin Case.
Handi Quilter purchases only the highest quality bobbin cases for use in their machines. Your bobbin case may differ slightly from the one pictured below, but all bobbin cases sold by Handi Quilter are compatible with each other. (There are two brands: Koban and Cerliani.)
Many quilters like to have an extra bobbin case in their studio in case their machine’s bobbin case becomes damaged or unusable. Having a spare bobbin case is great when doing bobbin work as well.