BOYE-The Crochet Dude: Crochet Hook. These ergonomic crochet hooks feature a 1-1/2 inch long aluminum shaft with a padded comfort grip handle that measures 4 inches long (5-1/2 inch total length). The size of the hook is stamped onto the colorful handle for easy identification. Each package contains one crochet hook. Size: US-F (3.75mm). Imported.