Has an extra large eye and large grooves to accommodate topstitch thread. This needle helps stitch perfectly straight lines and even stitches. The shank(top part) of these needles have one flat side and one rounded side. These will fit all "household" models of Brother, Janome, Singer, Pfaff, Bernina, Viking, Elna, Kenmore, Baby Lock, Simplicity, Necchi, White and many others.