The product is a megalodon tooth, a prehistoric shark tooth fossil from a 50-foot shark. This impressive piece is a must-have for collectors of rocks, fossils, and minerals, particularly those interested in vertebrate fossils and shark teeth. The tooth measures 5.4 inches in length, making it a unique and significant addition to any collection of shark tooth fossils. Its size and history make it a valuable and sought-after piece for enthusiasts of paleontology and natural history.