The Hemline Automatic Bobbin Winder provides a fast and convenient way to wind sewing machine bobbins without using your sewing machine, making it an ideal accessory for sewing, quilting and embroidery projects. Designed to work with a wide range of standard and large plastic and metal bobbins, it features adjustable thread winding tension to help produce smooth, evenly wound bobbins for consistent stitching. The automatic stop function switches the unit off once the bobbin is fully wound, helping to prevent overfilling and making operation simple and reliable. Compact and easy to use, the winder can be powered by either 3 x AA batteries (not included) or a USB Type-C cable and adapter (not included), offering flexible use at home, in sewing classes or while travelling. An additional spindle for Pfaff and Viking bobbins is included, along with a handy thread guide and multilingual instructions, making this a practical addition to any sewing workspace.