Aunt Lydia's-Crochet Cotton. This high luster mercerized cotton crochet thread is perfect for crochet projects both large and small. This thread is available in a wide range of fashion solids, neutral basics and alluring multi-colors that are ideal for home decorating and fashion projects. Size 7/1.5mm crochet hook is recommended. Care: machine wash (max.temp. 104F/40C), dry flat, do not bleach, do not dry clean, OK to iron. Dyelotted: we try but are not always able to match dyelots. Available in a variety of colors. Each sold separately. imported.