This set features high-quality thread made with a polyester-covered polyester core, designed for durability and smooth performance across a variety of sewing and crafting projects. Each spool offers 400 yards of white thread, providing plenty of length for both everyday use and larger projects. The thread is machine washable for easy care and is compatible with standard US crochet hook sizes. Lightweight at just 0.02 pounds per spool, this 6-count set is a practical addition to any sewing kit. Please note that this item may also be available from other sellers at a lower price, though they may not offer free Prime shipping.