This set includes 63 spools of machine embroidery polyester thread, each measuring 500 meters (550 yards). The threads are 40 weight, suitable for high-speed home and commercial embroidery machines. They feature outstanding shine, tensile strength, and color-fastness, ensuring vibrant and durable results. The high tensile strength helps minimize thread breaks and fraying during use. Each spool is individually shrink-wrapped and labeled, and the set comes in a giftable box. The spools are designed to fit in all major embroidery and sewing machines, providing a wide range of beautiful colors for various projects. Please note that a thread rack is not included. This comprehensive collection offers a versatile selection of colors, making it ideal for detailed embroidery work and creative sewing projects.