Brown 4-5mm diameter Coconut Beads Necklace Pendant is a 45-65 million years old Otodus Fossil (Extinct Mackerel Shark) Tooth Each tooth WILL vary in color and shape as no two are alike. The shark tooth measures 1 inch (25mm) or longer. Lengths are approximate due to widths of coconut beads used. We offer 14, 15, 17 inches, *20 inches, and *23 inches. *20 and *23 have a 3-inch and 6-inch extender added to the 17-inch necklace as seen in Pic #4 In stock and shipped daily from Florida Our jewelry items, parts, and shark’s teeth are not toys and contain small parts, which are not suitable for small children or for human consumption. Small parts may be a choking hazard. If these products are used by a child, it should be only under supervision by an adult.