4 Large Cones (3000 yards each) of Polyester threads for Sewing Quilting Serger BLACK Color from ThreadNanny 4 Cones of Polyester Threads for Sewing Quilting Serger BLACK Color as shown. High Quality, High Tensile Strength, Low Lint Thread Each Cone is 3000yards. You will receive total of 12000 yards. Good for any home or Commercial Machine Best Quality - Will not Break at High Speed Machines