End the frustration of bobbins running out in mid-project! With the touch of a button, this bobbin winder quickly and easily fills bobbins without having to un-thread and re-thread the sewing machine. A portion of the proceeds from sales will be donated to the Breast Cancer Research Foundation. This Sidewinder version now works with Viking/Husqvarna sewing machines. As an added bonus, the Limited Edition Sidewinder also inclueds a 60" Pink tape measure and a pair of pink handled scissors. Comes with a power cord/AC adapter, but also runs on two AA batteries (not included) for ultimate portability. Measures 3"H x 5"W x 3"D, so it truly is compact. Also has a built-in carrying handle and two spindles for storing extra bobbins. (Bobbins not included). Accommodates all bobbins that have a standard, round centering hole. PLEASE NOTE: Bobbins for the following machines DO NOT WORK with the SideWinder: Quilt Designer II (4125615-45/green), Quilt Designer (4125615-45/green), Platinum, Interlude, Rose (4125615-45/green), Prelude, Daisy (4125615-45/green), Prisma (4120612-45/"old style"), Optima (4120612-45/"old style"), Classica (4120612-45/"old style"); SINGER - Centaur II, Futura; PFAFF - Creative Vision.