With the touch of a button, SideWinder™, The Portable Bobbin Winder™ quickly and easily fills bobbins without having to un-thread and re-thread the sewing machine. The SideWinder's™ compact size means it fits anywhere, and since it runs on batteries or with a power cord, the SideWinder™ can be used anywhere-in class, on location, or at home! Free-standing machine Compact Size: 5 1/4" long x 3" high x 3 1/2" deep Runs on 2-AA batteries or A/C Adapter (included) .  Extra pegs for storing spare bobbins  Fits bobbins for most sewing machines except Singer Centaur II, Futura and Pfaff Creative Vision,  most Viking models.

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