Dritz Bobbin Box 507. 

Dritz Sewing Machine Bobbin Box has rounded wells that hold 25 regular bobbins or 50 Singer 600 series bobbins. 

This Heavy duty clear plastic case has a lid that slips tightly over the top to keep your bobbins organized. 

Measures 5 x 4 x 1 inch. 

Bobbins not included.    

CHK-507