having just traded in my old long arm for a Handi Quilter, I can tell you that bobbin cases are different. I had an extra case for my old machine. I got the generic and it worked just fine in that machine. I had hoped to be able to use it in the handi quilter, but my dealer told me it wouldn't work. When I got the Handi Quilter I could see it wouldn't. They are slightly different looking. So I guess the bottom line is you are going to have to spend the money & get the brand name one.