Native Treasure - Men's 18" Shark Tooth Puka Shell Black Wood Coco Bead Necklace - 5mm (3/16") Standard 18" Length. 5mm (3/16") Class 'A' Quality Hand-Sorted Shells and Wood Coco Beads. (not for water use) Real Whitetip Shark Tooth Pendant Approx. 3/4" Will Vary Includes Stainless Steel Beading Wire Upgrade, Silver Plated Trim, Sturdy Twist-Barrel Lock Exclusive 60 Day Free Breakage Replacement 100% Satisfaction Guarantee