Keep your size M bobbins shipshape with the Dritz Bigger Bobbin Boat, a compact storage solution that will ensure bobbins remain neatly stowed and tangle-free. Size 4.8750x1.25 inches. Each boat holds 10 size M bobbins. Curved interior 'hugs' bobbins secure in place. This package contains three Dritz Bigger Bobbin Boats in assorted colors. Imported.