This high-quality mercerized Egyptian cotton bridges the gap between super-fine crochet thread and bulkier cottons. Smooth, long-lasting, with colour and sheen that can't be beat! 125m (137yds) and 50g (1.75oz). 100% Egyptian Mercerized Cotton. Machine wash - normal, do not bleach, do not tumble dry, dry flat, iron - medium heat, dryclean - any solvent except trichloroethylene. 10 balls/bag. The recommended knitting needle is 3.5mm (US size 4) = 22 sts x 26 rows = 10cm (4in) in ST st. The recommended crochet hook is 3.75mm (US size F-5) = 18 sc x 23 rows = 10cm (4in). Remember to ALWAYS check tension/gauge before beginning your project.