I got this years ago and have only today decided to use it. I've thought it's a fairly useless gadget, up to now, but if nothing else it's a way to get to know all my wonderful colorful threads. And, side benefit, I'll have pre-wound bobbins all ready to use.

It's a bit quirky to use, not as stable as the sewing machine built-in winders, but hopefully winds bobbins that will spin well. We shall see...