With the touch of a button quickly and easily fill bobbins without having to un-thread and re-thread your sewing machine. The compact size means it fits anywhere making it great for toting to class. The SideWinder is a free-standing machine; comes with a UL-approved AC power cord/adapter (included) or runs on 2 AA batteries (not included). Accommodates all bobbins (except Viking) that have a standard round center hole and includes instructions for use. The Sidewinder features a convenient flip top; is white and measures only 3 by 5-1/4 by 3-1/2-inch. Imported.