Questions? Leave a comment below! Necklace is adjustable from 15-30" long. SYMBOL OF PROTECTION: Shark teeth have been recognized as a symbol of protection. The ancient Hawaiians wore shark tooth jewelry to keep any sea dangers at bay. Many surfers wear shark tooth necklaces to prevent sharks from attacking you and protect them while they are at sea. Nowadays, The charms and talismans are to bring shark tooth for good luck and safe for journey. It is cool and unique. This is a Ocean Shark Tooth.