Select 80wt Para-cotton Poly thread makes for the perfect bobbin thread. These pre-wound bobbins have no resins or glues holding the thread to the bobbin for a clean sewing experience. The convenient case has a clear lid to keep dust off of the bobbins while leaving them visible. Each slot is labeled with the thread color to make matching easier. Quilter’s Select® items are not to be sold on any internet auction site or third-party internet site, i.e. Ebay, Amazon, Walmart, etc. * Color: Multi * Size: Class 15 * Length: 135yds per bobbin * Count: 40 * Includes: 1 each of 40 colors