Made from a durable polyester, the Gutermann Sulky Bobbin Fill is great to have on hand for your next embroidery project. Available in black or white, this bobbin thread is fine with a soft feel. Use this thread with the Elna Air Artist Embroidery Machine or the Semco iPink Embroidery Sewing Machine. Spotlight offers a variety of bobbin fill for all your sewing needs. Shop with us online or in-store today!