The Hammerhead Shark is another of the Under Sea Collection from CreationsByGems. This great Shark is a definite Have To Have for any undersea creature admirer. Finished size: 42 inches long. BASIC SKILLS NECESSARY ch, sl st, sc, hdc,dc, (sc 2 sts tog), working down back side of ch st Working in Both Front & Back Loops GAUGE Most of our patterns use worsted weight (4 ply) yarn Gauge 8 sc by 8 rows = 2 inches. Each pattern can be also made from Baby Wool (fingering weight) For this use a size 3.0 Crochet Hook Gauge 6 sc by 6 rows = 1 inch. SIZING / FINISHED MEASUREMENTS Finished size: 42 inches long.