I attempted to learn this craft and failed. Interchangeable Crochet Hook Set Bamboo 1500-C 5.7-inch (14.5 cm) US Sizes E, F, G, 7, H, I, J, K, L, M & N (Metric 3.5, 3.75, 4, 4.5, 5, 5,5, 6, 6.5, 8, 9, 10) Eack hook measures 5.7 inches (14,5cm), made from Moso bamboo with a stainless steel join. Designed to include pointy head for easy access to the stitches and sizes are permanently lasered on the hook. Includes smooth transitions and secure connections. T-Spin set includes four Twist cables: two 8 in. (20cm), one 14 inch (35cm) and one 22 inch (55cm) in addition to four adapters, two cable connectors, two keys and 5 inch needle gauge.