Great gift for kids children who love sharks or students who love ocean sea life studying to become marine biologists to track sharks take measurements note maturity levels gather information to expand knowledge buy today for that future marine biologist! Marine biology is the scientific study of marine life organisms in the sea many species are economically important to humans including sharks this design features 21 types of sharks with their silhouette and official name underneath buy one of these today! 8.5 oz, Classic fit, Twill-taped neck