New ThreadNanny Black and White Spools of 3-PLY Polyester Sewing Quilting Serger threads (10 tubes X 1000 meters) 10 Spools of High Quality 3-PLY BLACK and WHITE Sewing Quilting Serger Threads High Quality 3-PLY 100% SPUN Polyester 40wt. Each Spool is 1000 Meters (1100 Yards) Size approximately 6.5 cms x 3.8 cms Good for any home or Commercial Machine. Best Quality - Will not Break at High Speed Machines. Thread Rack is Not included in this listing, but is available for purchase from our Amazon Store.