Box of 12 cones for madeira aerolock overhead. Madeira. For clear and net surveys that last a long time. So much to invest and use the most beautiful fabrics if the seam dissolves after a few washes? With the new high -end wire Aerolock you get net surveys that last a long time. Aerolock is a guiped thread and only this manufacturing guarantees high quality as well as longevity with seam, even in case of frequent washing or when the seam is highly stressed. Aerolock is resistant and is suitable for all sewing machines and Coverlock machines. Coloris: 8000 x 4, 8010 x 4, 8100 x 4.