Use them in overlockers, embroidery and quilting machines, Brother sewing machines and sergers. The needles fit dozens of other brands and specialty sewing machines too. If you buy one or more packs of Schmetz Sewing Machine Needles you can be guaranteed an on hand supply of high-quality, long-lasting, sharp sewing needles that fit every one of your sewing machines (because, hey, a sewer like you does not have just one machine, right?).