10 Sizes Steel Crochet Hook Set Sizes The set includes 10 individual steel crochet hook This hook set employs durable steel that's polished for extra smoothness. Wide diameter range from a thin 0.9 mm to a thick 2.7 mm You always have the correct crochet hook within easy reach with this must-have set. Each crochet hook 4.8 inch in length, smooth & steady