I have the Sidewinder Deluxe. It comes with adapters for most machines. I got it at Joann's on a 40% off sale and on a day where there was 25% off your total purchase coupon. I also needed the extension on the Deluxe version to use cones of quilting thread & serger thread. It definitely beats having to drag out my old mechanical machine just to wind bobbins. There are other, more commercial looking bobbin winders (K-Kraft is one) but they cost even more.