I have purchased lot's of bobbins and use the 1/2 bobbins to price with. For the most part the color is white, cream, or gray. I also have a bobbin winder and I figure out how many bobbins in need for a project and wind them before I begin then I don't have to stop in the middle of a project and wind bobbins. I have 15-20 bobbins for each machine.