Crocheters have trusted Coats signature quality for generations to create heirloom-quality tablecloths, bedspreads, fashion apparel and more. One of the most versatile and popular crochet thread weights. Size 10 works up beautifully to create elegant projects, both large and small. 100% mercerized cotton, 3-ply. White, Ercu & Natural: 400 yards, Solids: 350 yards.