Susan Bates Steelite Crochet Hook Set contains 6 hooks made of the finest nickel plated steel for crocheting the finest crochet thread lace projects. The vinyl case is perfect to store your hooks safely. This set includes hook sizes 10 (1.15 mm), 9 (1.25 mm), 8 (1.4 mm), 7 (1.5 mm), 1 (2.35 mm) and 0 (2.55 mm).