AK-Trading 4-Pack ROYAL BLUE Serger Cone Thread (6000 yards each) of Polyester thread for Sewing, Quilting, Serger #790 4 Cones of Polyester Threads for Sewing Quilting Serger Color as shown. High Quality, High Tensile Strength, Low Lint Thread. 100% Polyester Spun. Each Cone is 6000yards. You will receive total of 24000 yards. Good for any home or Commercial Machine. Use for Serger, Over lock, Merrow, single needle etc. Best Quality - Will not Break at High Speed Machines