High quality premium sewing machine bobbins (100) style SA-156 bobbins made for Brother, Singer, Babylock, Janome & Kenmore sewing machines Fits any sewing machine that accepts style SA156 bobbins 7/16" deep Security notch for consistent bobbin thread winding High quality premium sewing machine bobbins from Ultima, The Quilter's Favorite! 100 style SA-156 bobbins made for Brother, Singer, Babylock, Janome and Kenmore sewing machines, fits any Brother that accepts style SA156 bobbins. Bobbins are 7/16" deep and have a security notch for consistant thread winding. (100 Bobbins)