Just Google organ how to choose a sewing machine needle, lots of charts and index links come up. I use excusively organ needles, they are the best. Superior Threads has information on their site. They sell exclusively organ needles. almost all of our domestic machines come with an organ needle in them. Janome has their name on their needle packaging, but they too, are organ. I have learned, not to use a universal needle, match your needle to your thread and the type of fabric. Obviously, a ballpoint stretch needle works for knits...etc. I use a Microtex 90/14 for free motion quilting. The 90/14 size works best for me...it has a larger eye.