Bobbin Box Organizers with 30 L Style Prewound Bobbins White for Machine Embroidery SA155 Bobbin Organizer Box with NEB Style 30 Prewound Bobbins White (L Style) High Quality NO LINT Filament Polyester thread 60wt. Plastic Sided bobbins great for Embroidery Machines. High Density Foam Insert will hold all your bobbins for sewing / quilting / embroidery / serger without letting them unwind, fall or mingle with other bobbins. Great for carrying your bobbins to your Sewing / Embroidery Class without they unwinding and getting entangled with other threads. Will Fit all Sizes of Bobbins including Brother, Baby Lock, Viking, Elna, Janome, Kenmore etc. sewing machines Machines