Hemline's automatic bobbin winder is designed for a wide range of normal and large size spools. Wind bobbins quickly without using a sewing machine. Compact and easy to use, automatically stops when bobbin is fully wound. Works with plastic and metal bobbins, extra spindle for bobbin of PFAFF/VIKING machine. Item size: (d/w/h) 11 x 15 x 9cm. Operated by 3 x AA batteries (not included) or USB Type-C cable and adapter (not included). Includes handy thread guide and instructions in five languages (EN, FR, ES, DE, RU). Plastic free packaging. Wipe clean only.