Red Heart Fashion Crochet Thread is a size 5, 93% mercerized/7% metallic, cotton thread. The metallic portion gives your crochet projects flashes of shimmer and shine. This crochet thread is ideal for shawls, doilies, home decor items, other apparel and accessories. Size: 5. Made of 93% Mercerized Cotton/7% Metallic. Putup: 100yds (91m). Recommended Crochet Hook US 1-2 (2.25-2.7mm). Recommended Knitting Needles US 1- 2 (2.25-2.7mm). Dyelotted: we try but are not always able to match dyelots. Care: Machine wash gentle, do not bleach, dry flat. Comes in a variety of colors. Each sold separately. Imported.