100% hemp Java is a great choice for home decor projects due to its superior strength and durability. Fast growing and with a small carbon footprint, this natural fiber is easy on the environment. All this, and beautiful colors too! 200m (219yds) and 100g (3.5oz). 100% Hemp. Machine wash delicate, tumble dry low and drycleanable. 5 balls/bag. The recommended knitting needle is 4mm (US size 6) = 16 sts x 20 rows = 10cm (4″) in ST st. The recommended crochet hook is 4.5mm (US size 7) = 14 sc x 16 rows = 10cm (4″). Remember to ALWAYS check tension/gauge before beginning your project.