The Bobbinator from Sue Daley Designs is designed to turn your bobbin into a spool of thread! it is a practical and convenient way to carry your English Paper Piecing or hand Applique thread without getting tangles. Each bobbin is wound with Decobob 80wt cottonized polyester thread. The Bobbinator carries four (4) colors at a time. There are ten (10) colors to each package.