Made especially for synthetic suede or highly elastic synthetic knit wear. This needle is constructed with a medium ball point to help prevent skipped 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.