Bobbin Case For Elna Sewing Machines. Fits Elna models : 830 eXpressive, 860 eXpressive, 900 eXpressive, 920 eXpressive We stock many types of bobbins and bobbin cases for home & industrial sewing machines. Even if you don't find the one you are looking for, it does not mean we don't have it in stock. Please let us know machine builders' reference numbers and/or machine make & model and we will find one for you.