Set of 4 class 15 transparent bobbins
Compatible with select SINGER, Atlas, Brother, Domestic, Elna, Kenmore, Morse, necchi, New Home Pfaff, Sewmore, Universal, White, and Wizard machines
Made of plastic for durability
Never add thread to a partially wound bobbin as it may be uneven and cause thread to tangle or break

Singer Class 15 bobbins 4 pack