This high-quality thread from Surelock is the perfect choice for those who are looking for a reliable and durable option for their overlock machines. With 3000 yards of thread in each unit of sale, it is ideal for sewing enthusiasts who require a large amount of thread for their projects.The black color and polyester material make it suitable for a variety of sewing projects, whether it be for personal or professional use. This thread is specifically designed for overlock/serger machines, making it a must-have addition to any sewing kit. Trust in the quality of Surelock and enjoy the convenience of having ample thread for all your sewing needs.